@misc{FuttererKochEgbers, author = {Futterer, Birgit and Koch, Sandy and Egbers, Christoph}, title = {Traveling waves in low and intermediate rotating spherical shell convection}, language = {en} } @inproceedings{MotuzKornilovJehringetal., author = {Motuz, Vasyl and Kornilov, V. I. and Jehring, Lothar and Egbers, Christoph}, title = {Turbulent Boundary Layer Over An Uniformly Perforated Surface With Blowing}, language = {en} } @inproceedings{HasanuzzamanMotuzMerboldetal., author = {Hasanuzzaman, Gazi and Motuz, Vasyl and Merbold, Sebastian and Egbers, Christoph and Cuvier, Christophe and Foucaut, Jean-Marc}, title = {Turbulent boundary layer statistics under the influence of uniform micro-blowing}, series = {16th European Turbulence Conference, 21-24 August, 2017, Stockholm, Sweden}, booktitle = {16th European Turbulence Conference, 21-24 August, 2017, Stockholm, Sweden}, pages = {1}, language = {en} } @inproceedings{MerboldFischerEgbers, author = {Merbold, Sebastian and Fischer, Steffen and Egbers, Christoph}, title = {Turbulent Couette-Taylor flow - An experimental investigation of the angular momentum flux}, language = {en} } @inproceedings{OenguenerZanounEgbers, author = {{\"O}ng{\"u}ner, Emir and Zanoun, El-Sayed and Egbers, Christoph}, title = {Turbulent Pipe Flow Structure Analysis in CoLa-Pipe}, series = {Book of abstracts, 85th Annual Meeting of the International Association of Applied Mathematics and Mechanics, March 10 - 14, 2014, Erlangen}, booktitle = {Book of abstracts, 85th Annual Meeting of the International Association of Applied Mathematics and Mechanics, March 10 - 14, 2014, Erlangen}, publisher = {Gesellschaft f{\"u}r Angewandte Mathematik und Mechanik}, pages = {S. 493}, language = {en} } @inproceedings{MerboldFroitzheimEgbers, author = {Merbold, Sebastian and Froitzheim, Andreas and Egbers, Christoph}, title = {Turbulent Taylor-Couette flow for very wide gaps}, 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 = {26 -- 27}, language = {en} } @inproceedings{MotuzJehringEgbers, author = {Motuz, Vasyl and Jehring, Lothar and Egbers, Christoph}, title = {Turbulente Grenzschichtstr{\"o}mung an einer gleichm{\"a}ßig perforierten Wand mit Mikro-Ausblasen}, 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 = {de} } @misc{HarlanderKurgansky, author = {Harlander, Uwe and Kurgansky, Michael V.}, title = {Two-dimensional internal gravity wave beam instability. Linear theory and subcritical instability}, series = {Geophysical \& Astrophysical Fluid Dynamics}, journal = {Geophysical \& Astrophysical Fluid Dynamics}, issn = {1029-0419}, doi = {10.1080/03091929.2021.1943379}, language = {en} } @misc{ZanounEgbersDewidar, author = {Zanoun, El-Sayed and Egbers, Christoph and Dewidar, Yasser}, title = {Two-Point Velocity Correlations in Fully Developed Turbulent Pipe Flow at Shear Reynolds Number of Reτ ≈ 4000}, 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.202000330}, pages = {4}, language = {en} } @misc{BorciaBorciaXuetal., author = {Borcia, Ion-Dan and Borcia, Rodica and Xu, Wenchao and Bestehorn, Michael and Richter, Sebastian and Harlander, Uwe}, title = {Undular bores in a large circular channel}, series = {European Journal of Mechanics - B/Fluids}, volume = {79}, journal = {European Journal of Mechanics - B/Fluids}, issn = {0997-7546}, doi = {10.1016/j.euromechflu.2019.09.003}, pages = {67 -- 73}, abstract = {An experimental device previously developed for studying rotating baroclinic flows has been used to investigate undular bores formation, propagation and collision. Up to our knowledge this is the first experimental study of undular bores in a circular channel. For a setup without barriers, this geometry accomplishes in a natural way the periodic lateral boundary conditions, very often used in numerical simulations. An excellent agreement between the experiment and simulation has been achieved. The spatio-temporal structure of bores is well reproduced for the first few reflections or collisions.}, language = {en} } @incollection{LarcherEgbers, author = {Larcher, Thomas von and Egbers, Christoph}, title = {Untersuchung barokliner Instabilit{\"a}ten mit LDA und Str{\"o}mungsvisualisierung, in: Lasermethoden in der Str{\"o}mungsmesstechnik, 11. Fachtagung}, editor = {Dopheide, Dietrich and M{\"u}ller, Harald and Strunck, Volker and Ruck, Bodo and Leder, Alfred}, isbn = {3-00-011903-5}, language = {de} } @inproceedings{NobisReinkeSchmidtetal., author = {Nobis, Matthias and Reinke, Peter and Schmidt, Marcus and Redlich, Marcel and Egbers, Christoph and Herzog, Nicoleta and Gorenz, Paul and Christl, Andreas}, title = {Untersuchung der instation{\"a}ren Gleitlagerstr{\"o}mung}, series = {21. GALA-Tagung 2013, Lasermethoden in der Str{\"o}mungsmesstechnik, 03. - 05. September 2013, M{\"u}nchen}, booktitle = {21. GALA-Tagung 2013, Lasermethoden in der Str{\"o}mungsmesstechnik, 03. - 05. September 2013, M{\"u}nchen}, publisher = {Dt. Gesellschaft f{\"u}r Laser-Anemometrie}, address = {Karlsruhe}, isbn = {978-3-9805613-9-6}, pages = {51.1 -- 51.10}, language = {de} } @incollection{StueckeEgbers, author = {St{\"u}cke, Peter and Egbers, Christoph}, title = {Untersuchung der Sp{\"u}lstr{\"o}mung in kleinen Zweitaktmotoren}, language = {de} } @article{SmieszekEgbers, author = {Smieszek, Marlene and Egbers, Christoph}, title = {Untersuchung eines scherverd{\"u}nnenden Fluids im Zylinderspalt}, language = {de} } @inproceedings{SmieszekEgbers, author = {Smieszek, Marlene and Egbers, Christoph}, title = {Untersuchung eines scherverd{\"u}nnenden Fluids im Zylinderspalt}, language = {de} } @inproceedings{JehringZanounEgbers, author = {Jehring, Lothar and Zanoun, El-Sayed and Egbers, Christoph}, title = {Untersuchung von ebenen Wandgrenzschichten mit verschiedenen optischen Messverfahren, Fachtagung}, language = {de} } @incollection{LarcherEgbers, author = {Larcher, Thomas von and Egbers, Christoph}, title = {Untersuchung von {\"U}bergangszonen barokliner Wellen mit LDA und Str{\"o}mungsvisualisierung}, language = {de} } @inproceedings{MotuzEgbersNaebertetal., author = {Motuz, Vasyl and Egbers, Christoph and Naebert, T. and Rohden, Christoph von}, title = {Untersuchungen zur Str{\"o}mung in einer aerologischen Messkammer bei niedrigen Dr{\"u}cken}, 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. 36}, language = {de} } @incollection{SliavinSzaboFruehetal., author = {Sliavin, Yaraslau and Szabo, Peter and Fr{\"u}h, Wolf-Gerrit and Schulze, Bj{\"o}rn and Egbers, Christoph}, title = {Utilizing infrared thermography to investigate baroclinic instability in the differentially heated rotating annulus}, series = {GALA-Fachtagung "Experimentelle Str{\"o}mungsmechanik", 6.- 8. September 2022, Ilmenau}, booktitle = {GALA-Fachtagung "Experimentelle Str{\"o}mungsmechanik", 6.- 8. September 2022, Ilmenau}, doi = {10.13140/RG.2.2.32413.59360}, pages = {49.1 -- 49.8}, language = {en} } @misc{FuttererZaussingerEgbersetal., author = {Futterer, Birgit and Zaussinger, Florian and Egbers, Christoph and Scurtu, Nicoleta}, title = {Variation of viscosity contrast for convection experiments in spherical shells as part of geophy-sical flow simulation experiment "GeoFlow II"}, language = {en} } @misc{FroitzheimMerboldEgbers, author = {Froitzheim, Andreas and Merbold, Sebastian and Egbers, Christoph}, title = {Velocity profiles, flow structures and scalings in a wide-gap turbulent Taylor-Couette flow}, series = {Journal of Fluid Mechanics}, volume = {831}, journal = {Journal of Fluid Mechanics}, issn = {0022-112}, doi = {10.1017/jfm.2017.634}, pages = {330 -- 357}, language = {en} } @incollection{JehringZanounKito, author = {Jehring, Lothar and Zanoun, El-Sayed and Kito, Mizuki}, title = {Vermessung wandnaher Str{\"o}mungen unter Verwendung eines neuartigen miniaturisierten Sensor-Moduls}, language = {de} } @incollection{ErdogduSzaboCarteretal., author = {Erdogdu, A.O. and Szabo, Peter and Carter, R. and Gevre, M.-E. and Haun, Peter and Zaussinger, Florian and Schulze, B. and Meier, Martin and Egbers, Christoph}, title = {Verwendung der Wollaston-Scherinterferometrie zur Untersuchung des Brechungsindexgradienten in einem differentiell beheizten Ringspalt}, series = {Experimentelle Str{\"o}mungsmechanik : 28. Fachtagung, 7.-9. September 2021, Bremen}, booktitle = {Experimentelle Str{\"o}mungsmechanik : 28. Fachtagung, 7.-9. September 2021, Bremen}, publisher = {Deutsche Gesellschaft f{\"u}r Laser-Anemometrie - German Association for Laser Anemometry GALA e.V.}, address = {Karlsruhe}, isbn = {978-3-9816764-7-1}, pages = {19}, language = {de} } @inproceedings{Herzog, author = {Herzog, Nicoleta}, title = {Viscoelastic fluid instability in analogy with the magnetorotational instability in Taylor-Couette flows}, language = {en} } @incollection{StueckeEgbers, author = {St{\"u}cke, Peter and Egbers, Christoph}, title = {Visualisierung der Str{\"o}mung im Inneren von Zylindern f{\"u}r kleine Zweitaktmotoren, in: Lasermethoden in der Str{\"o}mungsmesstechnik, 11. Fachtagung}, editor = {Dopheide, Dietrich and M{\"u}ller, Harald and Strunck, Volker and Ruck, Bodo and Leder, Alfred}, isbn = {3-00-011903-5}, language = {de} } @article{StueckeEgbers, author = {St{\"u}cke, Peter and Egbers, Christoph}, title = {Visualization of scavenging flow in the design of small two-stroke engines}, language = {en} } @incollection{StueckeEgbersGeyer, author = {St{\"u}cke, Peter and Egbers, Christoph and Geyer, W.}, title = {Visualization of the Scavenging Flow of Small Two-Stroke Cylinders}, language = {en} } @misc{ZanounEgbersNagibetal., author = {Zanoun, El-Sayed and Egbers, Christoph and Nagib, H. M. and Durst, F. and Bellani, Gabriele and Talamelli, Alessandro}, title = {Wall friction relations in wall-bounded shear flows}, series = {European Journal of Mechanics - B/Fluids}, volume = {Vol. 89}, journal = {European Journal of Mechanics - B/Fluids}, issn = {1873-7390}, doi = {10.1016/j.euromechflu.2021.03.007}, pages = {171 -- 179}, language = {en} } @inproceedings{SevlamOenguenerPeixinhoetal., author = {Sevlam, Kamal and {\"O}ng{\"u}ner, Emir and Peixinho, Jorge and Zanoun, El-Sayed and Egbers, Christoph}, title = {Wall pressure fluctuations in developing turbulent pipe flow}, series = {Book of abstracts, School ISTROF 2016, Instabilities and Turbulence in Strato-Rotational Flows, July 11-13th, 2016, Le Havre}, booktitle = {Book of abstracts, School ISTROF 2016, Instabilities and Turbulence in Strato-Rotational Flows, July 11-13th, 2016, Le Havre}, language = {en} } @misc{SelvamOenguenerPeixinhoetal., author = {Selvam, Kamal and {\"O}ng{\"u}ner, Emir and Peixinho, Jorge and Zanoun, El-Sayed and Egbers, Christoph}, title = {Wall pressure in developing turbulent pipe flows}, series = {Journal of Fluids Engineering}, volume = {140}, journal = {Journal of Fluids Engineering}, number = {8}, issn = {1528-901X}, pages = {7}, language = {en} } @misc{ZanounDurstSalehetal., author = {Zanoun, El-Sayed and Durst, F. and Saleh, O. and Al-Salaymeh, Ahmed}, title = {Wall skin friction and mean velocity profiles of fully developed turbulent pipe flows}, series = {Experimental Thermal and Fluid Science}, volume = {32}, journal = {Experimental Thermal and Fluid Science}, number = {1}, issn = {0894-1777}, doi = {10.1016/j.expthermflusci.2007.04.002}, pages = {249 -- 261}, language = {en} } @inproceedings{OenguenerDittmarMeyeretal., author = {{\"O}ng{\"u}ner, Emir and Dittmar, Mirko and Meyer, P. and Zanoun, El-Sayed and Egbers, Christoph}, title = {Wall-bounded turbulent Structures in pipe flow based on streamwise and cross-sectional PIV at Re=10^4-10^5}, 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} } @misc{BorciaRichterBorciaetal., author = {Borcia, Ion-Dan and Richter, Sebastian and Borcia, Rodica and Sch{\"o}n, Franz-Theo and Harlander, Uwe and Bestehorn, Michael}, title = {Wave propagation in a circular channel: sloshing and resonance}, 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/s11734-023-00790-z}, pages = {461 -- 468}, abstract = {Surface wave resonance of a liquid (water) layer confined in a circular channel is studied both experimentally and numerically. For the experiment, eight unevenly distributed ultrasonic distance sensors measure the local height of the wave surface. The resonance curves show maxima only for odd multiples of the fundamental resonance frequency . We explained this behavior using a simple intuitive "ping-pong" like model. Collision of wave fronts can be observed for higher frequencies. Also, the wave reflection on the walls can be treated as wave collision with itself. The non-linearity seems to be weak in our study so the delay in the wave propagation before and after the collision is small. Time-space plots show localized propagating waves with high amplitudes for frequencies near resonance. Between the peaks low amplitude and harmonic patterns are observed. However, for higher frequencies, the frequency band for localized waves becomes wider. In the Fourier space-time plane, this can be observed as a point for the harmonic patterns or a superposition of two lines: one line parallel to wave-vector k axis corresponding to the excitation frequency and a second line with inclination given by wave propagation velocity . For planned future work, this result will help us to reconstruct the whole water surface elevation using time-series from only a few measurement points}, language = {en} } @misc{KochHarlanderEgbers, author = {Koch, Sandy and Harlander, Uwe and Egbers, Christoph}, title = {Wave-attractors and mean flow in a spherical shell due to time-modulated rotation}, language = {en} } @inproceedings{OenguenerZanounFiorinietal., author = {{\"O}ng{\"u}ner, Emir and Zanoun, El-Sayed and Fiorini, Tommaso and Bellani, Gabriele and Shahirpour, Amir and Egbers, Christoph and Talamelli, Alessandro}, title = {Wavenumber Dependence of Very Large-Scale Motions in CICLoPE at 4800 ≤ Reτ ≤ 37.000}, series = {Progress in Turbulence VII, Proceedings of the iTi Conference in Turbulence 2016}, booktitle = {Progress in Turbulence VII, Proceedings of the iTi Conference in Turbulence 2016}, editor = {{\"O}rl{\"u}, Ramis and Talamelli, Alessandro and Peinke, Joachim and Oberlack, Martin}, publisher = {Springer}, address = {Cham}, isbn = {978-3-319-57933-7}, pages = {101 -- 106}, language = {en} } @inproceedings{KochHarlanderHollerbachetal., author = {Koch, Sandy and Harlander, Uwe and Hollerbach, Rainer and Rabitti, A. and Maas, L. R. M. and Egbers, Christoph}, title = {Wellen und Wellenattrktoren in einer Kugelschale mit zeitlich modulierter Rotation}, language = {de} } @inproceedings{FroitzheimMerboldEgbers, author = {Froitzheim, Andreas and Merbold, Sebastian and Egbers, Christoph}, title = {Wide gap 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 = {28 -- 29}, language = {en} } @inproceedings{SeeligHarlanderBorciaetal., author = {Seelig, Torsten and Harlander, Uwe and Borcia, Ion-Dan and Egbers, Christoph}, title = {Zonal mean flow excitation due to inertial waves propagating in the meridional plane}, series = {European Geosciences Union (EGU), 9th General Assembly, Vienna, Austria, 22-27 April}, booktitle = {European Geosciences Union (EGU), 9th General Assembly, Vienna, Austria, 22-27 April}, language = {en} } @phdthesis{Larcher, author = {Larcher, Thomas von}, title = {Zur Stabilit{\"a}t barokliner Wellen im starr rotierenden Zylinderspalt}, publisher = {VDI-Verl.}, address = {D{\"u}sseldorf}, isbn = {3-18-348607-6}, language = {de} } @article{TravnikovEgbers, author = {Travnikov, Vadim and Egbers, Christoph}, title = {Zur Stabili{\"a}t thermischer Konvektion im Kugelspalt unter Erdbedingungen Energietheorie}, language = {de} } @inproceedings{UhligKirnerPreussetal., author = {Uhlig, Benedict and Kirner, Claus and Preuß, Ann-Christin and Graf, Johann and Neben, Matthias}, title = {{\"O}ltransport durch die Kolbenringe}, series = {Abschluss- und Zwischenberichte der Forschungsstellen, gehalten auf der Informationstagung der FVV am 29. September 2016 in Madgeburg}, booktitle = {Abschluss- und Zwischenberichte der Forschungsstellen, gehalten auf der Informationstagung der FVV am 29. September 2016 in Madgeburg}, publisher = {FVV, Forschungsvereinigung Verbrennungskraftmaschinen}, address = {Frankfurt}, pages = {197 -- 230}, language = {de} } @article{StueckeSchwarzScurtuetal., author = {St{\"u}cke, Peter and Schwarz, M. and Scurtu, Nicoleta and Egbers, Christoph}, title = {{\"U}ber die exzentrische Zylinderspaltstr{\"o}mung bei engen Spaltweiten}, language = {de} }