@inproceedings{DahleyFuttererEgbers, author = {Dahley, Norman and Futterer, Birgit and Egbers, Christoph}, title = {Control of convection by different buoyancy forces}, language = {en} } @misc{DahleyFuttererEgbersetal., author = {Dahley, Norman and Futterer, Birgit and Egbers, Christoph and Crumeyrolle, Olivier and Mutabazi, Innocent}, title = {Parabolic flight experiment "Convection in a Cylinder" : Convection patterns in varying buoyancy forces}, series = {Journal of Physics: Conference Series}, volume = {318}, journal = {Journal of Physics: Conference Series}, issn = {1742-6588}, doi = {10.1088/1742-6596/318/8/082003}, pages = {082003}, 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{Zaussinger, author = {Zaussinger, Florian}, title = {Semiconvection}, language = {de} } @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} } @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} } @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} } @misc{HarlanderSeeligFaulwetter, author = {Harlander, Uwe and Seelig, Torsten and Faulwetter, Robin}, title = {Singular vector growth in different flow regimes of the differentially heated rotating annulus}, 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} } @misc{ZimmerZanounEgbers, author = {Zimmer, Franziska and Zanoun, F. and Egbers, Christoph}, title = {A Study on the Influence of Triggering Pipe Flow Regarding Mean and Higher Order Statistics}, language = {en} } @inproceedings{MerboldEgbers, author = {Merbold, Sebastian and Egbers, Christoph}, title = {Experimental investigations on torque scaling in turbulent Taylor-Couette-Flow}, language = {en} } @misc{MerboldFischerEgbers, author = {Merbold, Sebastian and Fischer, Steffen and Egbers, Christoph}, title = {Torque scaling in Taylor-Couette-Flow - An experimental investigation}, 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{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{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{AlexandrovHarlanderEgbers, author = {Alexandrov, Kiril and Harlander, Uwe and Egbers, Christoph}, title = {Spatial spectra of regular and irregular rotating annulus flows: Statistical scale classification in terms of empirical orthogonal functions}, language = {en} } @misc{Zaussinger, author = {Zaussinger, Florian}, title = {Semiconvection}, language = {en} } @misc{FuttererDahleyKochetal., author = {Futterer, Birgit and Dahley, Norman and Koch, Sandy and Scurtu, Nicoleta and Egbers, Christoph}, title = {From isoviscous convective experiment 'GeoFlow I' to temperature-dependent viscosity in 'GeoFlow II' Fluid physics experiments on-board ISS for the capture of convection phenomena in Earth's outer core and mantle}, language = {en} } @misc{HarlanderWenzelAlexandrovetal., author = {Harlander, Uwe and Wenzel, Julia and Alexandrov, Kiril and Wang, Yongtai and Egbers, Christoph}, title = {Simultaneous PIV- and thermography-measurements of partially blocked flow in a heated rotating annulus}, series = {Experiments in Fluids}, volume = {52}, journal = {Experiments in Fluids}, number = {4}, issn = {1432-1114}, doi = {10.1007/s00348-011-1195-y}, pages = {1077 -- 1087}, language = {de} } @inproceedings{HarlanderWrightEgbers, author = {Harlander, Uwe and Wright, G. B. and Egbers, Christoph}, title = {Reconstruction of the 3D flow field in a differentially heated rotating annulus by synchronized particle image velocimetry and infrared thermography measurements}, series = {16th International Symposium on Applications of Laser Techniques to Fluid Mechanics, Lisbon, Portugal, 09-12 July, Proceedings, Calouste Gulbenkian Foundation, Lisbon, Portugal}, booktitle = {16th International Symposium on Applications of Laser Techniques to Fluid Mechanics, Lisbon, Portugal, 09-12 July, Proceedings, Calouste Gulbenkian Foundation, Lisbon, Portugal}, language = {en} } @inproceedings{MerboldEgbers, author = {Merbold, Sebastian and Egbers, Christoph}, title = {Analysis of differentially rotating turbulent Taylor-Couette-flow using Laser Doppler-Anemometry and comparison with torque measurements}, series = {16th International Symposium on Applications of Laser Techniques to Fluid Mechanics, Lisbon, Portugal, 09-12 July, Proceedings, Calouste Gulbenkian Foundation, Lisbon, Portugal}, booktitle = {16th International Symposium on Applications of Laser Techniques to Fluid Mechanics, Lisbon, Portugal, 09-12 July, Proceedings, Calouste Gulbenkian Foundation, Lisbon, Portugal}, language = {en} } @inproceedings{MerboldBrauckmannEgbers, author = {Merbold, Sebastian and Brauckmann, Hannes and Egbers, Christoph}, title = {Optimal angular momentum flux of wide gap Taylor-Couette flow}, 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{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} } @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} } @inproceedings{BorciaHarlanderSeeligetal., author = {Borcia, Ion-Dan and Harlander, Uwe and Seelig, Torsten and Egbers, Christoph}, title = {Comparing the spectrum of wave attractor frequency bands and the eigenspectrum of fluid in a rotating annulus with inclined inner cylinder}, 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{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{HarlanderWrightEgbers, author = {Harlander, Uwe and Wright, G. B. and Egbers, Christoph}, title = {Reconstruction of the 3D flow field in a differentially heated rotating annulus laboratory experiment}, 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} } @inproceedings{KochHarlanderHollerbachetal., author = {Koch, Sandy and Harlander, Uwe and Hollerbach, Rainer and Egbers, Christoph}, title = {Inertial waves in a rotating spherical shell: Comparison between numerical simulations and laboratory experiments}, 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} } @inproceedings{BorciaHarlanderSeeligetal., author = {Borcia, Ion-Dan and Harlander, Uwe and Seelig, Torsten and Egbers, Christoph}, title = {Comparing attractor frequency bands with eigen frequencies for a confined rotating fluid}, 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} } @inproceedings{HerzogGorenzEgbers, author = {Herzog, Nicoleta and Gorenz, Paul and Egbers, Christoph}, title = {High pressurized CO2 release CFD calculations from onshore pipeline leakages}, 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} } @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{ButtEgbers, author = {Butt, Usman and Egbers, Christoph}, title = {Aerodynamic Characteristics of Flow over Circular Cylinders with Patterned Surface}, series = {International Journal of Materials, Mechanics and Manufacturing}, volume = {1}, journal = {International Journal of Materials, Mechanics and Manufacturing}, number = {2}, pages = {121 -- 124}, language = {en} } @misc{BorciaHarlander, author = {Borcia, Ion-Dan and Harlander, Uwe}, title = {Inertial waves in a rotating annulus with inclined inner cylinder: comparing the spectrum of wave attractor frequency bands and the eigenspectrum in the limit of zero inclination}, series = {Theoretical and Computational Fluid Dynamics}, volume = {27}, journal = {Theoretical and Computational Fluid Dynamics}, number = {3-4}, issn = {1432-2250}, doi = {10.1007/s00162-012-0278-6}, pages = {397 -- 413}, language = {en} } @misc{HerzogEgbers, author = {Herzog, Nicoleta and Egbers, Christoph}, title = {Atmospheric dispersion of CO2 released from pipeline leakages}, series = {Energy Procedia}, volume = {40}, journal = {Energy Procedia}, issn = {1876-6102}, pages = {232 -- 239}, language = {en} } @misc{FuttererYoshikawaMutabazietal., author = {Futterer, Birgit and Yoshikawa, Harunori and Mutabazi, Innocent and Egbers, Christoph}, title = {Facilities to alter weight - Electric Fields}, series = {Generation and Applications of Extra-Terrestrial Environments on Earth}, journal = {Generation and Applications of Extra-Terrestrial Environments on Earth}, editor = {Beysens, Daniel and Loon, Jacobus van}, publisher = {River Publ.}, address = {Aalborg}, isbn = {978-87-93237-53-7}, pages = {91 -- 100}, language = {en} } @misc{ShahirpourHerzogEgbers, author = {Shahirpour, Amir and Herzog, Nicoleta and Egbers, Christoph}, title = {Towards CFD Modeling of Carbon Dioxide Turbulent Pipe Line Transportation}, series = {Energy Procedia}, volume = {40}, journal = {Energy Procedia}, doi = {10.1016/j.egypro.2013.08.047}, pages = {408 -- 417}, language = {en} } @misc{VinczeBorchertAchatzetal., author = {Vincze, Miklos and Borchert, Sebastian and Achatz, Ulrich and Larcher, Thomas von and Baumann, Martin and Liersch, Claudia and Remmler, Sebastian and Beck, Teresa and Alexandrov, Kiril and Egbers, Christoph and Fr{\"o}hlich, Jochen and Heuveline, Vincent and Hickel, Stefan and Harlander, Uwe}, title = {Benchmarking in a rotating annulus: a comparative experimental and numerical study of baroclinic wave dynamics}, series = {Meteorologische Zeitschrift}, volume = {23}, journal = {Meteorologische Zeitschrift}, number = {6}, issn = {1610-1227}, doi = {10.1127/metz/2014/0600}, pages = {611 -- 635}, language = {en} } @misc{KupkaLoschZaussingeretal., author = {Kupka, Friedrich and Losch, Martin and Zaussinger, Florian and Zweigle, Thomas}, title = {Semi-convection in the ocean and in stars: A multi-scale analysis}, series = {Meteorologische zeitschrift}, volume = {24}, journal = {Meteorologische zeitschrift}, number = {3}, issn = {0941-2948}, doi = {10.1127/metz/2015/0643}, pages = {343 -- 358}, abstract = {Fluid stratified by gravitation can be subject to a number of instabilities which eventually lead to a flow that causes enhanced mixing and transport of heat. The special case where a destabilizing temperature gradient counteracts the action of a stabilizing gradient in molecular weight is of interest to astrophysics (inside stars and giant planets) and geophysics (lakes, oceans) as well as to some engineering applications. The detailed dynamics of such a system depend on the molecular diffusivities of heat, momentum, and solute as well as system parameters including the ratio of the two gradients to each other. Further important properties are the formation and merging of well-defined layers in the fluid which cannot be derived from linear stability analysis. Moreover, the physical processes operate on a vast range of length and time scales. This has made the case of semi-convection, where a mean temperature gradient destabilizes the stratification while at the same time the mean molecular gradient tends to stabilize it, a challenge to physical modelling and to numerical hydrodynamical simulation. During the MetStr{\"o}m project the simulation codes ANTARES and MITgcm have been extended such that they can be used for the simulations of such flows. We present a comparison of effective diffusivities derived from direct numerical simulations. For both stars and the oceanic regimes, the Nusselt numbers (scaled diffusivities) follow similar relationships. Semi-convection quickly becomes inefficient, because the formation of layers limits vertical mixing. In contrast to the complementary saltfingering, these layers tend to damp instabilities so that effective diffusivities of salinity (concentration) are up to two orders of magnitudes smaller than in the former case.}, language = {en} } @misc{SeeligKielczewskiTuliszkaSznitkoetal., author = {Seelig, Torsten and Kielczewski, Kamil and Tuliszka-Sznitko, Ewa M. and Harlander, Uwe and Egbers, Christoph and Bontoux, Patrick}, title = {Taylor-Couette flow with asymmetric end-walls boundary conditions}, series = {15th European turbulence conference (ETC), Delft, The Netherlands (2015)}, journal = {15th European turbulence conference (ETC), Delft, The Netherlands (2015)}, language = {en} } @misc{EgbersGorenzSchmidtetal., author = {Egbers, Christoph and Gorenz, Paul and Schmidt, Marcus and Wolf, Carsten}, title = {3-D-CFD-Simulation der Schmierspaltstr{\"o}mung in einem Radialgleitlager}, series = {Motortechnische Zeitschrift : MTZ}, volume = {76}, journal = {Motortechnische Zeitschrift : MTZ}, number = {7-8}, issn = {2192-8843}, pages = {66 -- 73}, language = {de} } @phdthesis{Christl, author = {Christl, Andreas}, title = {3D-CFD-Simulation der exzentrischen Taylor-Couette Str{\"o}mung mit Bezug auf das hydrodynamische Gleitlager}, publisher = {Cuvillier}, address = {G{\"o}ttingen}, isbn = {978-3-73699-081-4}, pages = {II, 109}, language = {de} } @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} } @inproceedings{SeeligHarlanderKielczewskietal., author = {Seelig, Torsten and Harlander, Uwe and Kielczewski, Kamil and Tuliszka-Sznitko, Ewa M. and Bontoux, Patrick and Egbers, Christoph}, title = {Study of transitional and turbulent flows in rotor/stator cavities}, 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 = {118 -- 119}, language = {en} } @misc{HoffHarlanderEgbers, author = {Hoff, Michael and Harlander, Uwe and Egbers, Christoph}, title = {Experimental survey of linear and nonlinear inertial waves and wave instabilities in a spherical shell}, series = {Journal of Fluid Mechanics}, journal = {Journal of Fluid Mechanics}, number = {vol. 789}, issn = {1750-6859}, doi = {10.1017/jfm.2015.743}, pages = {589 -- 616}, 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} } @incollection{OenguenerZanounKoenigetal., author = {{\"O}ng{\"u}ner, Emir and Zanoun, El-Sayed and K{\"o}nig, Franziska and Egbers, Christoph}, title = {Structure Investigation in Pipe Flow at High Reynolds Numbers}, publisher = {Springer}, address = {Berlin}, isbn = {978-3-319-29130-7}, pages = {217 -- 220}, language = {en} } @misc{ZanounOenguenerEgbers, author = {Zanoun, El-Sayed and {\"O}ng{\"u}ner, Emir and Egbers, Christoph}, title = {Conventional measuring probes in the wall layer of turbulent subsonic ducted flows}, series = {Thermophysics and Aeromechanics}, volume = {23}, journal = {Thermophysics and Aeromechanics}, number = {3}, issn = {1531-8699}, pages = {329 -- 342}, language = {en} } @misc{VeenHuismanMerboldetal., author = {Veen, Roeland C. A. van der and Huisman, Sander G. and Merbold, Sebastian and Harlander, Uwe and Egbers, Christoph and Lohse, Detlef and Sun, Chao}, title = {Taylor Couette turbulence at radius ratio =0,5:scaling, flow structures and plumes}, series = {Journal of Fluid Mechanics}, volume = {799}, journal = {Journal of Fluid Mechanics}, issn = {1469-7645}, doi = {10.1017/jfm.2016.352}, pages = {334 -- 351}, language = {en} } @misc{HoffHarlanderTriana, author = {Hoff, Michael and Harlander, Uwe and Triana, Santiago Andr{\´e}s}, title = {Study of turbulence and interacting inertial modes in a differentially rotating sphericel shell experiment}, series = {Physical Review Fluids}, volume = {1}, journal = {Physical Review Fluids}, number = {4}, doi = {10.1103/PhysRevFluids.1.043701}, pages = {043701}, language = {en} }