@inproceedings{KochHarlanderHollerbachetal., author = {Koch, Sandy and Harlander, Uwe and Hollerbach, Rainer and Egbers, Christoph}, title = {Inertial waves in a spherical shell induced by librations of the inner sphere: experimental and numerical results}, series = {European Geosciences Union (EGU), 10th General Assembly, Vienna, Austria, 07 - 12 April 2013}, booktitle = {European Geosciences Union (EGU), 10th General Assembly, Vienna, Austria, 07 - 12 April 2013}, language = {en} } @misc{KochHarlanderEgbersetal., author = {Koch, Sandy and Harlander, Uwe and Egbers, Christoph and Hollerbach, Rainer}, title = {Inertial waves in a spherical shell induced by librations of the inner sphere: experimental and numerical results}, series = {Fluid Dynamics Research}, volume = {45}, journal = {Fluid Dynamics Research}, number = {3}, issn = {0169-5983}, doi = {10.1088/0169-5983/45/3/035504}, pages = {035504}, language = {en} } @inproceedings{SeeligHarlanderBorciaetal., author = {Seelig, Torsten and Harlander, Uwe and Borcia, Ion-Dan and Scurtu, Nicoleta and Egbers, Christoph and Klein, Marten and Ghasemi, Abouzar and Will, Andreas and Schaller, Eberhard}, title = {Inertial waves in rotating cylindrical annulus: theory, experiment and simulations}, series = {Book of abstracts, 9th European Fluid Mechanics Conference (EFMC), 9-13 September, Rome, Italy}, booktitle = {Book of abstracts, 9th European Fluid Mechanics Conference (EFMC), 9-13 September, Rome, Italy}, language = {en} } @inproceedings{BorciaSeeligHarlanderetal., author = {Borcia, Ion-Dan and Seelig, Torsten and Harlander, Uwe and Egbers, Christoph}, title = {Inertial waves in rotating cylindrical geometry: mean flow interactions and attractors}, language = {en} } @inproceedings{BorciaHarlander, author = {Borcia, Ion-Dan and Harlander, Uwe}, title = {Inertial waves inside a liquid confined between two rotating coaxial cylinders: the case of small Ekman number}, language = {en} } @incollection{YousryMerboldEgbers, author = {Yousry, Mohamed and Merbold, Sebastian and Egbers, Christoph}, title = {Influence of convex structured surfaces on turbulent channel flow at different channel heights}, series = {Experimentelle Str{\"o}mungsmechanik : 27. Fachtagung 3.-5. September 2019 Erlangen}, booktitle = {Experimentelle Str{\"o}mungsmechanik : 27. Fachtagung 3.-5. September 2019 Erlangen}, editor = {Delgado, Antonio}, publisher = {Deutsche Gesellschaft f{\"u}r Laser-Anemometrie - German Association for Laser Anemometry GALA e.V.}, address = {Karlsruhe}, isbn = {978-3-9816764-6-4}, pages = {5.1 -- 5.9}, language = {en} } @misc{TravnikovZaussingerHaunetal., author = {Travnikov, Vadim and Zaussinger, Florian and Haun, Peter and Egbers, Christoph}, title = {Influence of dielectrical heating on convective flow in a radial force field}, series = {Physical Review E}, volume = {101}, journal = {Physical Review E}, number = {5}, issn = {2470-0053}, doi = {10.1103/PhysRevE.101.053106}, pages = {16}, language = {en} } @misc{ZaussingerEgbersTravnikovetal., author = {Zaussinger, Florian and Egbers, Christoph and Travnikov, Vadim and Haun, Peter}, title = {Influence of internal heating on convection in the rotating spherical gap}, series = {17th European Turbulence Conference, ETC 2019, September 3 - 6, 2019, Torino, Italy}, journal = {17th European Turbulence Conference, ETC 2019, September 3 - 6, 2019, Torino, Italy}, address = {Turin}, pages = {1}, language = {en} } @inproceedings{HasanuzzamanMerboldMotuzetal., author = {Hasanuzzaman, Gazi and Merbold, Sebastian and Motuz, Vasyl and Egbers, Christoph}, title = {Influence of micro-blowing technique on skin friction of boundary layer flows}, series = {11th European Fluid Mechanics Conference, Sept. 12-16, 2016, Sevilla, Spain}, booktitle = {11th European Fluid Mechanics Conference, Sept. 12-16, 2016, Sevilla, Spain}, pages = {1}, language = {en} } @inproceedings{MartinezAriasPeixinhoFroitzheimetal., author = {Martinez-Arias, Borja and Peixinho, Jorge and Froitzheim, Andreas and Merbold, Sebastian and Egbers, Christoph and Mutabazi, Innocent}, title = {Influence of the radius ratio on the torque in turbulent Taylor-Couette flow}, series = {ICTW 19, Book of Abstracts, 19th International Couette-Taylor Workshop, June 24 - 26, 2015 Cottbus, Germany}, booktitle = {ICTW 19, Book of Abstracts, 19th International Couette-Taylor Workshop, June 24 - 26, 2015 Cottbus, Germany}, address = {Cottbus}, pages = {30 -- 31}, language = {en} } @misc{TravnikovZaussingerBeltrameetal., author = {Travnikov, Vadim and Zaussinger, Florian and Beltrame, Philippe and Egbers, Christoph}, title = {Influence of the temperature-dependent viscosity on convective flow in the radial force field}, series = {Physical Review / E}, volume = {96}, journal = {Physical Review / E}, number = {2}, issn = {2470-0053}, doi = {10.1103/PhysRevE.96.023108}, pages = {023108}, language = {en} } @misc{ScurtuBaensch, author = {Scurtu, Nicoleta and B{\"a}nsch, E.}, title = {Influence of the Weissenberg number on the stability of Oldroyd kind fluids}, language = {en} } @article{DetersEgbersZanounetal., author = {Deters, T. and Egbers, Christoph and Zanoun, El-Sayed and Guillerm, R.}, title = {Influence of thermal convection in Taylor-Couette flows}, language = {en} } @inproceedings{DetersGuillermEgbersetal., author = {Deters, T. and Guillerm, R. and Egbers, Christoph and Zanoun, El-Sayed}, title = {Influence of thermal convection in Taylor-Couette flows}, language = {en} } @inproceedings{YousryShahirpourMerboldetal., author = {Yousry, Mohamed and Shahirpour, Amir and Merbold, Sebastian and Egbers, Christoph}, title = {Influence on flow behaviour inside a rectangular channel by patterned surface}, series = {Experimentelle Str{\"o}mungsmechanik, 24. Fachtagung 6.-8. September 2016 Cottbus}, booktitle = {Experimentelle Str{\"o}mungsmechanik, 24. Fachtagung 6.-8. September 2016 Cottbus}, editor = {Egbers, Christoph}, publisher = {German Association for Laser Anemometry GALA e.V.}, address = {Karlsruhe}, isbn = {978-3-9816764-2-6}, pages = {S. 26}, language = {en} } @incollection{Egbers, author = {Egbers, Christoph}, title = {Instabilities and bifurcation scenarios in rotating fluids}, language = {en} } @misc{SchoenBestehorn, author = {Sch{\"o}n, Franz-Theo and Bestehorn, Michael}, title = {Instabilities and pattern formation in viscoelastic fluids}, series = {The European Physical Journal Special Topics}, volume = {Vol. 232}, journal = {The European Physical Journal Special Topics}, number = {4}, issn = {1951-6401}, doi = {10.1140/epjs/s11734-023-00792-x}, pages = {375 -- 383}, language = {en} } @misc{LarcherViazzoHarlanderetal., author = {Larcher, Thomas von and Viazzo, Stephane and Harlander, Uwe and Vincze, Miklos}, title = {Instabilities and small-scale waves within the Stewartson layers of a thermally driven rotating annulus}, series = {Journal of Fluid Mechanics}, journal = {Journal of Fluid Mechanics}, number = {vol. 841}, issn = {1750-6859}, doi = {10.1017/jfm.2018.10}, pages = {380 -- 407}, language = {en} } @incollection{MoreFuttererHollerbachetal., author = {More, Tamar and Futterer, Birgit and Hollerbach, Rainer and Egbers, Christoph}, title = {Instabilities of the Stewartson Layer II : An Experimental/Numerical Comparison}, series = {Nonlinear dynamics in fluids}, booktitle = {Nonlinear dynamics in fluids}, edition = {1. edition}, publisher = {Cimne}, address = {Barcelona}, isbn = {84-95999-28-5}, pages = {186 -- 189}, language = {en} } @article{Hollerbach, author = {Hollerbach, Rainer}, title = {Instabilities of the Stewartson Layer, part 1. The dependence on the sign of Ro}, language = {en} } @article{HollerbachEgbersFuttereretal., author = {Hollerbach, Rainer and Egbers, Christoph and Futterer, Birgit and More, Tamar}, title = {Instabilities of the Stewartson layer, part 2. Supercritical mode transitions}, language = {en} } @inproceedings{SmieszekCrumeyrolleEgbersetal., author = {Smieszek, Marlene and Crumeyrolle, Olivier and Egbers, Christoph and Mutabazi, Innocent}, title = {Instabilities with polyacrylamide solution in small and large aspect ratio Taylor-Couette systems}, language = {en} } @article{SmieszekCrumeyrolleEgbersetal., author = {Smieszek, Marlene and Crumeyrolle, Olivier and Egbers, Christoph and Mutabazi, Innocent}, title = {Instabilities with polyacrylamide solution in small and large aspect ratio Taylor-Couette systems}, language = {en} } @article{SmieszekCrumeyrolleMutabazietal., author = {Smieszek, Marlene and Crumeyrolle, Olivier and Mutabazi, Innocent and Egbers, Christoph}, title = {Instabilities with polyacrylamide solution in small and large aspect ratios Taylor-Couette systems}, language = {en} } @misc{LeGalHarlanderBorciaetal., author = {Le Gal, Patrice and Harlander, Uwe and Borcia, Ion-Dan and Le Diz{\`e}s, St{\´e}phane and Chen, J. and Favier, Benjamin}, title = {Instability of vertically stratified horizontal plane Poiseuille flow}, series = {Journal of Fluid Mechanics}, volume = {907}, journal = {Journal of Fluid Mechanics}, number = {R1}, issn = {1469-7645}, doi = {10.1017/jfm.2020.917}, pages = {1 -- 14}, language = {en} } @inproceedings{ZanounEgbersOenguener, author = {Zanoun, El-Sayed and Egbers, Christoph and {\"O}ng{\"u}ner, Emir}, title = {Integral Flow parapeters for evaluating the law of the wall in pipe and channel facilities}, series = {11th European Fluid Mechanics Conference, Sept. 12-16, 2016, Sevilla, Spain}, booktitle = {11th European Fluid Mechanics Conference, Sept. 12-16, 2016, Sevilla, Spain}, language = {en} } @inproceedings{HoffHarlanderEgbersetal., author = {Hoff, Michael and Harlander, Uwe and Egbers, Christoph and Triana, Santiago Andr{\´e}s}, title = {Interacting inertial modes and their instability in a differentially rotating spherical gap flow}, series = {Book of abstracts, 31st IUGG Conference on Mathematical Geophysics 6 - 10 June 2016 Paris, France}, booktitle = {Book of abstracts, 31st IUGG Conference on Mathematical Geophysics 6 - 10 June 2016 Paris, France}, pages = {S. 37}, language = {en} } @inproceedings{HoffHarlanderEgbersetal., author = {Hoff, Michael and Harlander, Uwe and Egbers, Christoph and Triana, Santiago Andr{\´e}s}, title = {Interacting inertial modes in a differentially rotating spherical gap flow experiment}, series = {Experimentelle Str{\"o}mungsmechanik, 24. Fachtagung 6.-8. September 2016 Cottbus}, booktitle = {Experimentelle Str{\"o}mungsmechanik, 24. Fachtagung 6.-8. September 2016 Cottbus}, editor = {Egbers, Christoph}, publisher = {German Association for Laser Anemometry GALA e.V.}, address = {Karlsruhe}, isbn = {978-3-9816764-2-6}, pages = {S. 12}, language = {en} } @misc{HarlanderWangAlexandrovetal., author = {Harlander, Uwe and Wang, Yongtai and Alexandrov, Kiril and Seelig, Torsten and Egbers, Christoph}, title = {Intercomparison of numerical models simulating rotating annulus flows}, language = {en} } @inproceedings{GorenzHerzogEgbers, author = {Gorenz, Paul and Herzog, Nicoleta and Egbers, Christoph}, title = {Investigation of CO2 release pressures in pipeline cracks}, series = {European Geosciences Union (EGU), 10th General Assembly, Vienna, Austria, 07 - 12 April 2013}, booktitle = {European Geosciences Union (EGU), 10th General Assembly, Vienna, Austria, 07 - 12 April 2013}, language = {en} } @misc{GorenzHerzogEgbers, author = {Gorenz, Paul and Herzog, Nicoleta and Egbers, Christoph}, title = {Investigation of CO2 release pressures in pipeline cracks}, series = {Energy Procedia}, volume = {40}, journal = {Energy Procedia}, issn = {1876-6102}, pages = {285 -- 293}, language = {en} } @inproceedings{ButtJehringEgbers, author = {Butt, Usman and Jehring, Lothar and Egbers, Christoph}, title = {Investigation of flow over bluff bodies with patterned surface using Laser-Doppler Anemometry}, series = {Lasermethoden in der Str{\"o}mungsmesstechnik, 20. Fachtagung, 04. - 06. September 2012, Rostock}, booktitle = {Lasermethoden in der Str{\"o}mungsmesstechnik, 20. Fachtagung, 04. - 06. September 2012, Rostock}, publisher = {GALA}, address = {Karlsruhe}, isbn = {978-3-9805613-8-9}, language = {en} } @phdthesis{Koenig, author = {K{\"o}nig, Franziska}, title = {Investigation of High Reynolds Number Pipe Flow}, publisher = {Cuvillier}, address = {G{\"o}ttingen}, isbn = {978-3-73699-049-4}, language = {en} } @misc{RichterZanounEgbers, author = {Richter, Stefan and Zanoun, El-Sayed and Egbers, Christoph}, title = {Investigation of Large Scale Motion Interaction with the Near-Wall Turbulence}, series = {Proceedings in applied mathematics and mechanics : PAMM}, volume = {20}, journal = {Proceedings in applied mathematics and mechanics : PAMM}, number = {1}, issn = {1617-7061}, doi = {10.1002/pamm.202000331}, pages = {2}, language = {en} } @misc{EgbersGellertHarlanderetal., author = {Egbers, Christoph and Gellert, Marcus and Harlander, Uwe and Wang, Yongtai and R{\"u}diger, G{\"u}nther}, title = {Investigation of Stratorotational Instability (SRI) in Taylor-Couette flows with axial temperature gradient}, language = {en} } @inproceedings{MeierJongmannsEgbers, author = {Meier, Martin and Jongmanns, Marcel and Egbers, Christoph}, title = {Investigations on thermal electro-hydrodynamic convection in a cylindrical gap}, series = {Experimentelle Str{\"o}mungsmechanik, 24. Fachtagung 6.-8. September 2016 Cottbus}, booktitle = {Experimentelle Str{\"o}mungsmechanik, 24. Fachtagung 6.-8. September 2016 Cottbus}, editor = {Egbers, Christoph}, publisher = {German Association for Laser Anemometry GALA e.V.}, address = {Karlsruhe}, isbn = {978-3-9816764-2-6}, pages = {S. 39}, language = {en} } @inproceedings{SeeligHarlanderFaulwetteretal., author = {Seelig, Torsten and Harlander, Uwe and Faulwetter, Robin and Egbers, Christoph}, title = {Irregular and singular vector growth in the differentially heated rotating annulus}, language = {en} } @inproceedings{SeeligHarlanderFaulwetteretal., author = {Seelig, Torsten and Harlander, Uwe and Faulwetter, Robin and Egbers, Christoph}, title = {Irregular and singular vector growth in the differentially heated rotating annulus}, language = {en} } @misc{SeeligHarlanderFaulwetteretal., author = {Seelig, Torsten and Harlander, Uwe and Faulwetter, Robin and Egbers, Christoph}, title = {Irregularity and singular vector growth of the differentially heated rotating annulus flow}, language = {en} } @misc{RoddaHarlanderVincze, author = {Rodda, Costanza and Harlander, Uwe and Vincze, Miklos}, title = {Jet stream variability in a polar warming scenario - a laboratory perspective}, series = {Weather and Climate Dynamics}, volume = {3}, journal = {Weather and Climate Dynamics}, number = {3}, issn = {2698-4016}, doi = {10.5194/wcd-3-937-2022}, pages = {937 -- 950}, language = {en} } @techreport{UhligKirnerPreussetal., author = {Uhlig, Benedict and Kirner, Claus and Preuß, Ann-Christin and Graf, Johann and Neben, Matthias and Zaussinger, Florian}, title = {Kolbenring-{\"O}ltransport II : {\"O}ltransport durch die Kolbenringe}, publisher = {FVV, Forschungsvereinigung Verbrennungskraftmaschinen}, address = {Frankfurt am Main}, pages = {70}, abstract = {Ziele des Vorhabens sind die Verbesserung der Messtechnik f{\"u}r tribologische Untersuchungen in der Kolbengruppe aus dem Vorl{\"a}ufervorhaben Kolbenring-{\"O}ltransport I und die Untersuchung von verschiedenen Betriebsbedingungen und Komponenten hinsichtlich ihres Einflusses auf den {\"O}lhaushalt. Der Fokus liegt auf der verbesserten Aufl{\"o}sung der Schmierfilmdickenmessung und der Ringstoßlagen. Mit der erweiterten Kapillar- und Lichtleiterkonfiguration werden neue {\"O}ltransportvorg{\"a}nge entlang des Kolbenringpakets mittels Tracerinjektion und simultaner LiF-Messung beobachtet. Das methodische Vorgehen bei der optischen Analyse des Kapillarf{\"u}llungsgrades wird an einem Labor-Druckpr{\"u}fstand weiterentwickelt. Des Weiteren werden komplexe Simulationsmodelle erstellt, mit denen die Kolbensekund{\"a}r-bewegung, die Kolbenringbewegung, die Gasstr{\"o}mung im Ringpaket und der {\"O}ltransport im Ringpaket gekl{\"a}rt werden k{\"o}nnen. Die Kolbensekund{\"a}rbewegungsrechnung basiert auf einer FEM-Diskretisierung die aus CAD-Modellen s{\"a}mtlicher Bauteile abgeleitet ist. Die dreidimensionale Berechnung der Kolbenringbewegung erfolgt unter Ber{\"u}cksichtigung dynamisch wirkender Kr{\"a}fte aus der Bewegung, der Ringreibung, dem Gasdruck und den Zwischenring- dr{\"u}cken. Die Elastizit{\"a}t der Ringe wird ber{\"u}cksichtigt, so dass Biegung, Torsion und damit auch das Twisten abgebildet werden k{\"o}nnen. Nut- und Ringgeometrie sowie thermisch bedingte Verz{\"u}ge fließen ebenfalls in die Berechnung mit ein. Als Ergebnisgr{\"o}ßen stehen neben den Ringbewegungen und -lagen auch die Gasstr{\"o}mungen und -dr{\"u}cke, Schmierfilmh{\"o}hen und Verlustleistungen zur Verf{\"u}gung.}, language = {de} } @inproceedings{KochHarlanderHollerbachetal., author = {Koch, Sandy and Harlander, Uwe and Hollerbach, Rainer and Egbers, Christoph}, title = {Laboratory experiment and numerical simulations of inertial wave interactions in a rotating spherical shell}, language = {en} } @misc{KochHarlanderHollerbachetal., author = {Koch, Sandy and Harlander, Uwe and Hollerbach, Rainer and Egbers, Christoph}, title = {Laboratory experiment of inertial wave-interactions in a rotating spherical shell}, language = {en} } @misc{KochHarlanderHollerbachetal., author = {Koch, Sandy and Harlander, Uwe and Hollerbach, Rainer and Egbers, Christoph}, title = {Laboratory experiments and numerical simulations of inertial wave-interactions in a rotating spherical shell}, language = {en} } @phdthesis{Dahley, author = {Dahley, Sandy}, title = {Laboratory experiments and numerical simulations of inertial waves in a rotating spherical shell}, publisher = {Cuvillier Verlag}, address = {G{\"o}ttingen}, isbn = {978-3-73699-198-9}, language = {en} } @misc{KochHarlanderHollerbachetal., author = {Koch, Sandy and Harlander, Uwe and Hollerbach, Rainer and Egbers, Christoph}, title = {Laboratory experiments of inertial waves in containers rotating with time modulation}, language = {en} } @inproceedings{ShahirpourSesterhennEgbers, author = {Shahirpour, Amir and Sesterhenn, J{\"o}rn and Egbers, Christoph}, title = {Lagrangian Dynamic Mode Decomposition to capture Linearized Coherent Structures}, series = {Fachtagung der Gesellschaft f{\"u}r Angewandte Mathematik und Mechanik (GAMM), Braunschweig, 7.-11. M{\"a}rz 2016}, booktitle = {Fachtagung der Gesellschaft f{\"u}r Angewandte Mathematik und Mechanik (GAMM), Braunschweig, 7.-11. M{\"a}rz 2016}, pages = {16}, language = {en} } @inproceedings{FroitzheimMerboldEgbersetal., author = {Froitzheim, Andreas and Merbold, Sebastian and Egbers, Christoph and Ezeta, Rodrigo and Lohse, D. and Sun, C.}, title = {Large scale vortices in the Taylor-Couette flow}, series = {The 12th European Fluid Mechanics Conference, 9 September 2018 - 13 September 2018, Vienna, Austria}, booktitle = {The 12th European Fluid Mechanics Conference, 9 September 2018 - 13 September 2018, Vienna, Austria}, pages = {1}, language = {en} } @misc{BuchwaldHasanuzzamanMerboldetal., author = {Buchwald, Tom and Hasanuzzaman, Gazi and Merbold, Sebastian and Schanz, Daniel and Egbers, Christoph and Schr{\"o}der, Andreas}, title = {Large-scale flow field and aerosol particle transport investigations in a classroom using 2D-Shake-The-Box Lagrangian Particle Tracking}, series = {Heliyon}, volume = {9}, journal = {Heliyon}, number = {12}, issn = {2405-8440}, doi = {10.1016/j.heliyon.2023.e22826}, language = {en} } @incollection{KitoZanounJehringetal., author = {Kito, Mizuki and Zanoun, El-Sayed and Jehring, Lothar and Egbers, Christoph}, title = {Laser-Doppler Anemometry in Turbulent Boundary Layers Induced by Different Tripping Devices Compared with Recent Theories}, language = {en} } @inproceedings{StueckeNobisSchmidtetal., author = {St{\"u}cke, Peter and Nobis, Matthias and Schmidt, M. and Scurtu, Nicoleta and Egbers, Christoph}, title = {Laseroptische und numerische Untersuchung von Taylorwirbeln}, language = {de} } @inproceedings{YousryMerboldEgbers, author = {Yousry, Mohamed and Merbold, Sebastian and Egbers, Christoph}, title = {LDA measurements over hexagonal structured cavity inside turbulent channel flow}, series = {Experimentelle Str{\"o}mungsmechanik, 25. Fachtagung, 5.-7. September 2017, Karlsruhe}, booktitle = {Experimentelle Str{\"o}mungsmechanik, 25. Fachtagung, 5.-7. September 2017, Karlsruhe}, editor = {Ruck, Bodo}, publisher = {Deutsche Gesellschaft f{\"u}r Laser-Anemometrie GALA e.V.}, address = {Karlsruhe}, isbn = {978-3-9816764-3-3}, pages = {S. 22}, language = {en} } @incollection{StueckeLehmannScurtuetal., author = {St{\"u}cke, Peter and Lehmann, B. and Scurtu, Nicoleta and Egbers, Christoph}, title = {LDA-Messung in Zylinderspaltstr{\"o}mungen bei engen Spaltweiten}, language = {de} } @incollection{LarcherBeyerEgbers, author = {Larcher, Thomas von and Beyer, Wolfgang and Egbers, Christoph}, title = {LDA-Messungen zur Untersuchung barokliner Instabilit{\"a}ten}, language = {de} } @inproceedings{LarcherEgbers, author = {Larcher, Thomas von and Egbers, Christoph}, title = {LDA-Messungen zur Untersuchung barokliner Instabilit{\"a}ten, Lasermethoden in der Str{\"o}mungsmesstechnik}, language = {de} } @inproceedings{SitteLarcherEgbers, author = {Sitte, B. and Larcher, Thomas von and Egbers, Christoph}, title = {LDV-measurements on higher order dynamicsof baroclinic waves}, language = {en} } @misc{TravnikovEgbers, author = {Travnikov, Vadim and Egbers, Christoph}, title = {Linear stability analysis of the convective flow in a spherical gap with rotating inner surface}, series = {International Journal of Heat and Mass Transfer}, volume = {148}, journal = {International Journal of Heat and Mass Transfer}, issn = {0017-9310}, doi = {10.1016/j.ijheatmasstransfer.2019.119052}, pages = {10}, language = {en} } @misc{LabarbeLeGalHarlanderetal., author = {Labarbe, Joris and Le Gal, Patrice and Harlander, Uwe and Le Diz{\`e}s, St{\´e}phane and Favier, Benjamin}, title = {Localized layers of turbulence in stratified horizontally sheared Poiseuille flow}, series = {Fluid Dynamics}, journal = {Fluid Dynamics}, pages = {20}, language = {en} } @misc{FruehSzaboEgbersetal., author = {Fr{\"u}h, Wolf-Gerrit and Szabo, Peter and Egbers, Christoph and Harlander, Uwe}, title = {Locating sources of variability in the transition to Structural Vacillation in the baroclinic annulus}, series = {EGU General Assembly 2020, Online | 4-8 May 2020}, journal = {EGU General Assembly 2020, Online | 4-8 May 2020}, doi = {10.5194/egusphere-egu2020-7262}, language = {en} } @misc{HarlanderRidderinkhofSchoutenetal., author = {Harlander, Uwe and Ridderinkhof, H. and Schouten, M. W. and Ruijter, W. P. M. de}, title = {Long term observations of transport eddies, and Rossby waves in the Mozambique Channel}, doi = {10.1029/2008JC004846}, language = {en} } @inproceedings{ScurtuGorenzEgbers, author = {Scurtu, Nicoleta and Gorenz, Paul and Egbers, Christoph}, title = {Magnetorotational-type instability in Couette-Taylor flows of viscoelastic polymeric liquids}, language = {en} } @inproceedings{KleinGhasemiSeeligetal., author = {Klein, Marten and Ghasemi, Abouzar and Seelig, Torsten and Borcia, Ion-Dan and Harlander, Uwe and Will, Andreas}, title = {Mean flow generation and inertial wave attractors in a librating annulus: DNS and theory}, series = {European Geosciences Union, General Assembly 2015, Vienna, Austria, 13 April - 17 May 2015}, booktitle = {European Geosciences Union, General Assembly 2015, Vienna, Austria, 13 April - 17 May 2015}, publisher = {European Geophysical Society}, address = {Katlenburg-Lindau}, language = {en} } @misc{GhasemiKleinWilletal., author = {Ghasemi, Abouzar and Klein, Marten and Will, Andreas and Harlander, Uwe}, title = {Mean flow generation by an intermittently unstable boundary layer over a sloping wall}, series = {Journal of Fluid Mechanics}, journal = {Journal of Fluid Mechanics}, number = {vol. 853}, issn = {1750-6859}, doi = {10.1017/jfm.2018.552}, pages = {111 -- 149}, language = {en} } @misc{GhasemiKleinHarlanderetal., author = {Ghasemi, Abouzar and Klein, Marten and Harlander, Uwe and Kurgansky, Michael V. and Schaller, Eberhard and Will, Andreas}, title = {Mean flow generation by G{\"o}rtler vortices in a rotating annulus with librating side walls}, series = {Physics of Fluids}, volume = {28}, journal = {Physics of Fluids}, number = {056603}, doi = {10.1063/1.4948406}, pages = {1 -- 23}, abstract = {Time periodic variation of the rotation rate of an annulus induces in supercritical regime an unstable Stokes boundary layer over the cylinder side walls, generating G{\"o}rtler vortices in a portion of a libration cycle as a discrete event. Numerical results show that these vortices propagate into the fluid bulk and generate an azimuthal mean flow. Direct numerical simulations of the fluid flow in an annular container with librating outer (inner) cylinder side wall and Reynolds-averaged Navier-Stokes (RANS) equations as diagnostic equations are used to investigate generation mechanism of the retrograde (prograde) azimuthal mean flow in the bulk. First, we explain, phenomenologically, how absolute angular momentum of the bulk flow is mixed and changed due to the propagation of the G{\"o}rtler vortices, causing a new vortex of basin size. Then we investigate the RANS equations for intermediate time scale of the development of the G{\"o}rtler vortices and for long time scale of the order of several libration periods. The former exhibits sign selection of the azimuthal mean flow. Investigating the latter, we predict that the azimuthal mean flow is proportional to the libration amplitude squared and to the inverse square root of the Ekman number and libration frequency and then confirms this using the numerical data. Additionally, presence of an upscale cascade of energy is shown, using the kinetic energy budget of fluctuating flow.}, language = {en} } @misc{KurganskySeeligKleinetal., author = {Kurgansky, Michael V. and Seelig, Torsten and Klein, Marten and Will, Andreas and Harlander, Uwe}, title = {Mean flow generation due to longitudinal librations of sidewalls of a rotating annulus}, series = {Geophysical \& Astrophysical Fluid Dynamics}, volume = {114}, journal = {Geophysical \& Astrophysical Fluid Dynamics}, number = {6}, issn = {1029-0419}, doi = {10.1080/03091929.2019.1692829}, pages = {762}, abstract = {Laboratory experiments with a rotating cylindrical annulus arereported that reveal a prograde jet, which is adjacent to a (longitu-dinally) librating inner straight cylindrical wall. Here, wall libration isrealised as a time-harmonic modulation of the inner cylinder's rota-tion rate. The outer cylindrical wall and bottom and top lids rotatewith constant angular velocity. The main purpose of our study is tocontribute to a qualitative and quantitative understanding of non-linearities that are present in oscillating, but centrifugally stable,vertical boundary layers frequently encountered in rotating wall-bounded flows. We consider a problem that is in a sense comple-mentary to that of previous works that focused on oscillating Ekmanlayers but neglected the vertical Stokes-Stewartson layers. A sim-ple analytical model is proposed that is able to predict the magni-tude and spatial structure of the emerging prograde near-wall jet interms of nonlinearity inherent in the inner cylinder's boundary layerdynamics.}, language = {en} } @inproceedings{SeeligGhasemiKurganskyetal., author = {Seelig, Torsten and Ghasemi, Abouzar and Kurgansky, Michael V. and Klein, Marten and Will, Andreas and Harlander, Uwe}, title = {Mean flow generation due to longitudinal librations of sidewalls of a rotating annulus}, series = {15th European turbulence conference (ETC), Delft, The Netherlands (2015)}, booktitle = {15th European turbulence conference (ETC), Delft, The Netherlands (2015)}, language = {en} } @misc{XuHarlander, author = {Xu, Wenchao and Harlander, Uwe}, title = {Mean flow generation in rotating annulus with stochastic methods}, series = {17th European Turbulence Conference, ETC 2019, September 3 - 6, 2019, Torino, Italy}, journal = {17th European Turbulence Conference, ETC 2019, September 3 - 6, 2019, Torino, Italy}, address = {Turin}, pages = {1}, language = {en} } @incollection{ZanounDurstEgbers, author = {Zanoun, El-Sayed and Durst, F. and Egbers, Christoph}, title = {Mean Flow Properties in Smooth Pipe Flow Experiment}, language = {en} } @misc{UhligPreussGrafetal., author = {Uhlig, Benedict and Preuß, Ann-Christin and Graf, Johann and Neben, Matthias}, title = {Measurement and Simulation of the Oil Supply at the Piston Assembly}, series = {MTZ worldwide}, volume = {78}, journal = {MTZ worldwide}, number = {2}, issn = {2192-9114}, doi = {10.1007/s38313-016-0167-2}, pages = {72 -- 77}, abstract = {The main focus of the project series "Piston Ring Oil Transport" is the investigation of the tribological conditions in the piston assembly. Within the first part of the project, a 0.5-l single-cylinder research engine was built up [1, 2], which is equipped with numerous sensors to measure the tribological circumstances. In the second project part [3] presented here, additional simulation models are developed, which gain accuracy compared to the recorded measurement data and contribute significantly to an understanding of the oil supply at the piston assembly.}, language = {en} } @misc{FechtWunderlichMeieretal., author = {Fecht, Hans-J{\"o}rg and Wunderlich, Rainer and Meier, Martin and Sprenger, Heinz}, title = {Measurement of Thermophysical Properties of Metallic Melts for High Quality Castings}, language = {en} } @inproceedings{BabcsanLeitlmeierMeieretal., author = {Babcsan, N. and Leitlmeier, D. and Meier, M. and Banhart, J. and Garcia-Moreno, F.}, title = {Measurements on cell walls and Plateau borders of particle stabilized foams}, series = {A collection of papers presented at the 5th European Conference on Foams, Emulsions, and Applications, EUFOAM 2004}, booktitle = {A collection of papers presented at the 5th European Conference on Foams, Emulsions, and Applications, EUFOAM 2004}, editor = {Vignes-Adler, Mich{\`e}le}, publisher = {Elsevier}, address = {Amsterdam [u.a.]}, language = {en} } @misc{ButtJehringEgbers, author = {Butt, Usman and Jehring, Lothar and Egbers, Christoph}, title = {Mechanism of drag reduction for circular cylinders with patterned surface}, series = {International journal of heat and fluid flow}, volume = {Vol. 45}, journal = {International journal of heat and fluid flow}, issn = {1879-2278}, pages = {128 -- 134}, language = {en} } @misc{UhligPreussGrafetal., author = {Uhlig, Benedict and Preuß, Ann-Christin and Graf, Johann and Neben, Matthias}, title = {Messtechnische und simulative Untersuchung des {\"O}lhaushalts an der Kolbengruppe}, series = {MTZ - Motortechnische Zeitschrift}, volume = {78}, journal = {MTZ - Motortechnische Zeitschrift}, number = {2}, issn = {2192-8843}, doi = {10.1007/s35146-016-0175-4}, pages = {76 -- 81}, abstract = {Die Projektreihe Kolbenring-{\"O}ltransport dient der Untersuchung der tribologischen Zust{\"a}nde in der Kolbengruppe. Dabei wurde im ersten Projektabschnitt ein 0,5-l-Einzylinder-Forschungsmotor aufgebaut, der mit zahlreichen Sensoren ausger{\"u}stet ist, um diese Zust{\"a}nde messtechnisch zu erfassen. Im zweiten, hier ausschnittsweise vorgestellten Projektabschnitt wurden zus{\"a}tzliche Simulationsmodelle implementiert, die durch Abgleich mit den aufgezeichneten Messdaten an Genauigkeit gewinnen und zum Verst{\"a}ndnis des {\"O}lhaushalts in der Kolbengruppe erheblich beitragen.}, language = {de} } @misc{MeierMeyerMutabazietal., author = {Meier, Martin and Meyer, Antoine and Mutabazi, Innocent and Egbers, Christoph}, title = {Microgravity experiments on thermo-electric flows}, series = {26th European Low Gravity Research Association Biennial Symposium and General Assembly, Granada (Spanien), September 24-27, 2019}, journal = {26th European Low Gravity Research Association Biennial Symposium and General Assembly, Granada (Spanien), September 24-27, 2019}, pages = {293 -- 294}, language = {en} } @article{FuttererGellertHuschtoetal., author = {Futterer, Birgit and Gellert, Marcus and Huschto, Michael and Larcher, Thomas von and Egbers, Christoph}, title = {Microgravity Science on International Space Station (ISS): The Geoflow Experiment}, language = {en} } @inproceedings{Futterer, author = {Futterer, Birgit}, title = {Minimierung von Diskretisierungsfehlern bei gitterunabh{\"a}ngiger Elektrodenpositionierung}, series = {62. Jahrestagung der Deutschen Geophysikalischen Gesellschaft im Jahr der Geowissenschaften}, booktitle = {62. Jahrestagung der Deutschen Geophysikalischen Gesellschaft im Jahr der Geowissenschaften}, publisher = {Deutsche Geophysikalische Gesellschaft}, address = {Hannover}, language = {de} } @misc{KupkaZaussingerMontgomery, author = {Kupka, Friedrich and Zaussinger, Florian and Montgomery, M. H.}, title = {Mixing and overshooting in surface convection zones of DA white dwarfs: First results from ANTARES}, series = {Monthly Notices of the Royal Astronomical Society}, volume = {474}, journal = {Monthly Notices of the Royal Astronomical Society}, number = {4}, issn = {1365-2966}, pages = {4660 -- 4671}, language = {en} } @incollection{ZanounEgbersJehring, author = {Zanoun, El-Sayed and Egbers, Christoph and Jehring, Lothar}, title = {Modified Optical and Thermal Anemometers for Laminar and Turbulent Boundary Layers Investigation}, language = {en} } @inproceedings{FroitzheimMerboldEgbers, author = {Froitzheim, Andreas and Merbold, Sebastian and Egbers, Christoph}, title = {Momentum transport and flow structures in a wide gap fully turbulent Taylor-Couette flow}, series = {Book of abstracts, 11th European Fluid Mechanics Conference (EFMC), 12-16 September, Seville, Spain}, booktitle = {Book of abstracts, 11th European Fluid Mechanics Conference (EFMC), 12-16 September, Seville, Spain}, pages = {1}, language = {en} } @misc{ZanounDurst, author = {Zanoun, El-Sayed and Durst, F.}, title = {Momentum transport and turbulent kinetic energy production in plane-channel flow}, language = {en} } @inproceedings{LarcherHarlanderSeeligetal., author = {Larcher, Thomas von and Harlander, Uwe and Seelig, Torsten and Randriamampianina, Anthony and Viazzo, Stephane and Vincze, Miklos}, title = {Multiple scales in the thermally driven rotating annulus: time-series data analysis of experiments and numerics}, series = {ICTW 19, Book of Abstracts, 19th International Couette-Taylor Workshop, June 24 - 26, 2015 Cottbus, Germany}, booktitle = {ICTW 19, Book of Abstracts, 19th International Couette-Taylor Workshop, June 24 - 26, 2015 Cottbus, Germany}, address = {Cottbus}, pages = {40 -- 41}, language = {en} } @misc{LarcherHarlanderAlexandrovetal., author = {Larcher, Thomas von and Harlander, Uwe and Alexandrov, Kiril and Wang, Yongtai}, title = {Multivariate statistical data analysis methods for detecting baroclinic wave interactions in the thermally driven rotating annulus}, language = {en} } @inproceedings{LarcherHarlanderEgbers, author = {Larcher, Thomas von and Harlander, Uwe and Egbers, Christoph}, title = {Multivariate statistical data analysis methods for detecting baroclinic wave interactions in the thermally driven rotating annulus}, language = {en} } @incollection{TravnikovHollerbachEgbers, author = {Travnikov, Vadim and Hollerbach, Rainer and Egbers, Christoph}, title = {Natural Convection in rotating Spherical gap under the central Force Field}, language = {en} } @article{FuttererBrucksHollerbachetal., author = {Futterer, Birgit and Brucks, A. and Hollerbach, Rainer and Egbers, Christoph}, title = {Natural convection in sperical shells: dripping vortex flow for high Prandtl number fluids}, language = {en} } @inproceedings{JehringZanounEgbers, author = {Jehring, Lothar and Zanoun, El-Sayed and Egbers, Christoph}, title = {Near-wall flow measurements by means of miniaturized LDV flow sensor combined with hot-film anemometry}, language = {en} } @incollection{AugensteinEgbersEckert, author = {Augenstein, Edgar and Egbers, Christoph and Eckert, S.}, title = {Neues Sensorkonzept zur Bestimmung der aerodynamischen Wand-Schubspannung}, language = {de} } @inproceedings{ZanounEgbersJehring, author = {Zanoun, El-Sayed and Egbers, Christoph and Jehring, Lothar}, title = {New Approach for Wall Shear Stress Measurements}, language = {en} } @misc{HarlanderSukhanovskiiAbideetal., author = {Harlander, Uwe and Sukhanovskii, Andrei and Abide, St{\´e}phane and Borcia, Ion-Dan and Popova, Elene and Rodda, Costanza and Vasiliev, Andrei and Vincze, Miklos}, title = {New Laboratory Experiments to Study the Large-Scale Circulation and Climate Dynamics}, series = {Atmosphere}, volume = {14}, journal = {Atmosphere}, number = {5}, doi = {10.3390/atmos14050836}, pages = {19}, abstract = {The large-scale flows of the oceans and the atmosphere are driven by a non-uniform surface heating over latitude, and rotation. For many years scientists try to understand these flows by doing laboratory experiments. In the present paper we discuss two rather new laboratory experiments designed to study certain aspects of the atmospheric circulation. One of the experiments, the differentially heated rotating annulus at the Brandenburg University of Technology (BTU) Cottbus, has a cooled inner cylinder and a heated outer wall. However, the structure of the atmospheric meridional circulation motivates a variation of this "classical" design. In the second experiment described, operational at the Institute of Continuous Media Mechanics (ICMM) in Perm, heating and cooling is performed at different vertical levels that resembles more the atmospheric situation. Recent results of both experiments are presented and discussed. Differences and consistencies are highlighted. Though many issues are still open we conclude that both setups have their merits. The variation with heating and cooling at different levels might be more suited to study processes in the transition zone between pure rotating convection and the zone of westerly winds. On the other hand, the simpler boundary conditions of the BTU experiment make this experiment easier to control.}, language = {en} } @inproceedings{ZaussingerEgbersKrebsetal., author = {Zaussinger, Florian and Egbers, Christoph and Krebs, Andreas and Travnikov, Vadim}, title = {New results of the spherical convection experiment Geoflow IIc}, series = {European Geosciences Union General Assembly 2017 Vienna, Austria, 23-28 April 2017}, booktitle = {European Geosciences Union General Assembly 2017 Vienna, Austria, 23-28 April 2017}, publisher = {European Geophysical Society}, address = {Katlenburg-Lindau}, language = {en} } @article{HollerbachJunkEgbers, author = {Hollerbach, Rainer and Junk, M. and Egbers, Christoph}, title = {Non-axisymmetric instabilities in basic state spherical Couette flow}, language = {en} } @inproceedings{FuttererZaussingerKrebsetal., author = {Futterer, Birgit and Zaussinger, Florian and Krebs, Andreas and Egbers, Christoph}, title = {Non-linear effects and associated instabilities in spherical Rayleigh-Benard experiments with variation of the viscosity contrast}, language = {en} } @inproceedings{FuttererLarcherEgbers, author = {Futterer, Birgit and Larcher, Thomas von and Egbers, Christoph}, title = {Non-rotational and rotational regimes of spherical gap flows and their influence on thermal convection in a set-up with central force field}, language = {en} } @inproceedings{FuttererZaussingerKochetal., author = {Futterer, Birgit and Zaussinger, Florian and Koch, Sandy and Krebs, Andreas and Egbers, Christoph}, title = {Nonlinear effects and associated instabilities in iso-viscous and temperature-dependent viscous thermal convection in spherical shells, the geophysical flow simulation experiment integrated in Fluid Science Laboratory}, language = {en} } @article{Meier, author = {Meier, M.}, title = {Nonmetallic solid foams - a non-exhaustive overview}, language = {en} } @misc{HarlanderBorciaKrebs, author = {Harlander, Uwe and Borcia, Ion-Dan and Krebs, Andreas}, title = {Nonnormality increases variance of gravity waves trapped in a tilted box}, series = {Geophysical \& Astrophysical Fluid Dynamics}, volume = {113}, journal = {Geophysical \& Astrophysical Fluid Dynamics}, number = {5/6}, issn = {1029-041}, doi = {10.1080/03091929.2018.1549660}, pages = {602 -- 622}, language = {en} } @inproceedings{RoddaBorciaHienetal., author = {Rodda, Costanza and Borcia, Ion-Dan and Hien, Steffen and Achatz, Ulrich and Le Gal, Patrice and Harlander, Uwe}, title = {Numerical and experimental study of inertia-gravity waves in the differentially heated rotating annulus}, series = {European Geosciences Union, General Assembly 2018, Vienna, Austria, 8-13 April 2018}, booktitle = {European Geosciences Union, General Assembly 2018, Vienna, Austria, 8-13 April 2018}, publisher = {European Geophysical Society}, address = {Katlenburg-Lindau}, language = {en} } @article{ScurtuStueckeEgbers, author = {Scurtu, Nicoleta and St{\"u}cke, Peter and Egbers, Christoph}, title = {Numerical and experimental study of the flow in an eccentric Couette - Taylor system with small gap}, language = {en} } @article{ScurtuBaensch, author = {Scurtu, Nicoleta and B{\"a}nsch, E.}, title = {Numerical and Stability Aspects of Non-Newtonain Fluid Flow}, language = {en} } @inproceedings{ScurtuEgbers, author = {Scurtu, Nicoleta and Egbers, Christoph}, title = {Numerical determination of the particle separation efficiency of industrial filters}, language = {en} }