TY - CHAP A1 - Dahley, Norman A1 - Futterer, Birgit A1 - Egbers, Christoph T1 - Control of convection by different buoyancy forces Y1 - 2011 ER - TY - GEN A1 - Dahley, Norman A1 - Futterer, Birgit A1 - Egbers, Christoph A1 - Crumeyrolle, Olivier A1 - Mutabazi, Innocent T1 - Parabolic flight experiment "Convection in a Cylinder" : Convection patterns in varying buoyancy forces T2 - Journal of Physics: Conference Series Y1 - 2011 U6 - https://doi.org/10.1088/1742-6596/318/8/082003 SN - 1742-6588 N1 - 13th European Turbulence Conference, 12-15 September 2011, Warsaw, Poland VL - 318 SP - 082003 ER - TY - GEN A1 - Futterer, Birgit A1 - Zaussinger, Florian A1 - Egbers, Christoph A1 - Scurtu, Nicoleta T1 - Variation of viscosity contrast for convection experiments in spherical shells as part of geophy-sical flow simulation experiment "GeoFlow II" Y1 - 2011 ER - TY - GEN A1 - Zaussinger, Florian T1 - Semiconvection Y1 - 2011 N1 - Poster ER - TY - GEN A1 - Koch, Sandy A1 - Harlander, Uwe A1 - Hollerbach, Rainer A1 - Egbers, Christoph T1 - Laboratory experiments of inertial waves in containers rotating with time modulation Y1 - 2011 ER - TY - GEN A1 - Harlander, Uwe A1 - Wang, Yongtai A1 - Alexandrov, Kiril A1 - Seelig, Torsten A1 - Egbers, Christoph T1 - Intercomparison of numerical models simulating rotating annulus flows Y1 - 2011 ER - TY - GEN A1 - Egbers, Christoph A1 - Gellert, Marcus A1 - Harlander, Uwe A1 - Wang, Yongtai A1 - Rüdiger, Günther T1 - Investigation of Stratorotational Instability (SRI) in Taylor-Couette flows with axial temperature gradient Y1 - 2011 ER - TY - GEN A1 - Harlander, Uwe A1 - Seelig, Torsten A1 - Faulwetter, Robin T1 - Singular vector growth in different flow regimes of the differentially heated rotating annulus Y1 - 2011 ER - TY - GEN A1 - Koch, Sandy A1 - Harlander, Uwe A1 - Hollerbach, Rainer A1 - Egbers, Christoph T1 - Laboratory experiment of inertial wave-interactions in a rotating spherical shell Y1 - 2011 ER - TY - GEN A1 - Koch, Sandy A1 - Harlander, Uwe A1 - Hollerbach, Rainer A1 - Egbers, Christoph T1 - Laboratory experiments and numerical simulations of inertial wave-interactions in a rotating spherical shell Y1 - 2011 ER - TY - GEN A1 - Zimmer, Franziska A1 - Zanoun, F. A1 - Egbers, Christoph T1 - A Study on the Influence of Triggering Pipe Flow Regarding Mean and Higher Order Statistics Y1 - 2011 ER - TY - CHAP A1 - Merbold, Sebastian A1 - Egbers, Christoph T1 - Experimental investigations on torque scaling in turbulent Taylor-Couette-Flow Y1 - 2011 ER - TY - GEN A1 - Merbold, Sebastian A1 - Fischer, Steffen A1 - Egbers, Christoph T1 - Torque scaling in Taylor-Couette-Flow - An experimental investigation Y1 - 2011 ER - TY - CHAP A1 - Merbold, Sebastian A1 - Fischer, Steffen A1 - Egbers, Christoph T1 - Turbulent Couette-Taylor flow - An experimental investigation of the angular momentum flux Y1 - 2011 ER - TY - CHAP A1 - Borcia, Ion-Dan A1 - Seelig, Torsten A1 - Harlander, Uwe A1 - Egbers, Christoph T1 - Inertial waves in rotating cylindrical geometry: mean flow interactions and attractors Y1 - 2011 ER - TY - CHAP A1 - Scurtu, Nicoleta A1 - Gorenz, Paul A1 - Egbers, Christoph T1 - Magnetorotational-type instability in Couette-Taylor flows of viscoelastic polymeric liquids Y1 - 2011 ER - TY - CHAP A1 - Alexandrov, Kiril A1 - Harlander, Uwe A1 - Egbers, Christoph T1 - Spatial spectra of regular and irregular rotating annulus flows: Statistical scale classification in terms of empirical orthogonal functions Y1 - 2011 ER - TY - GEN A1 - Zaussinger, Florian T1 - Semiconvection Y1 - 2011 ER - TY - GEN A1 - Futterer, Birgit A1 - Dahley, Norman A1 - Koch, Sandy A1 - Scurtu, Nicoleta A1 - Egbers, Christoph T1 - 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 Y1 - 2012 ER - TY - GEN A1 - Harlander, Uwe A1 - Wenzel, Julia A1 - Alexandrov, Kiril A1 - Wang, Yongtai A1 - Egbers, Christoph T1 - Simultaneous PIV- and thermography-measurements of partially blocked flow in a heated rotating annulus T2 - Experiments in Fluids Y1 - 2012 U6 - https://doi.org/10.1007/s00348-011-1195-y SN - 1432-1114 VL - 52 IS - 4 SP - 1077 EP - 1087 ER - TY - CHAP A1 - Harlander, Uwe A1 - Wright, G. B. A1 - Egbers, Christoph T1 - Reconstruction of the 3D flow field in a differentially heated rotating annulus by synchronized particle image velocimetry and infrared thermography measurements T2 - 16th International Symposium on Applications of Laser Techniques to Fluid Mechanics, Lisbon, Portugal, 09-12 July, Proceedings, Calouste Gulbenkian Foundation, Lisbon, Portugal Y1 - 2012 UR - http://ltces.dem.ist.utl.pt/lxlaser/lxlaser2012/program.asp ER - TY - CHAP A1 - Merbold, Sebastian A1 - Egbers, Christoph T1 - Analysis of differentially rotating turbulent Taylor-Couette-flow using Laser Doppler-Anemometry and comparison with torque measurements T2 - 16th International Symposium on Applications of Laser Techniques to Fluid Mechanics, Lisbon, Portugal, 09-12 July, Proceedings, Calouste Gulbenkian Foundation, Lisbon, Portugal Y1 - 2012 UR - http://ltces.dem.ist.utl.pt/lxlaser/lxlaser2012/upload/168_paper_spkupl.pdf ER - TY - CHAP A1 - Merbold, Sebastian A1 - Brauckmann, Hannes A1 - Egbers, Christoph T1 - Optimal angular momentum flux of wide gap Taylor-Couette flow T2 - Book of abstracts, 9th European Fluid Mechanics Conference (EFMC), 9-13 September, Rome, Italy Y1 - 2012 UR - http://www.efmc9.eu/absbook/index.html ER - TY - CHAP A1 - Motuz, Vasyl A1 - Jehring, Lothar A1 - Egbers, Christoph T1 - Turbulente Grenzschichtströmung an einer gleichmäßig perforierten Wand mit Mikro-Ausblasen T2 - Lasermethoden in der Strömungsmesstechnik, 20. Fachtagung, 04. - 06. September 2012, Rostock Y1 - 2012 SN - 978-3-9805613-8-9 PB - GALA CY - Karlsruhe ER - TY - CHAP A1 - Butt, Usman A1 - Jehring, Lothar A1 - Egbers, Christoph T1 - Investigation of flow over bluff bodies with patterned surface using Laser-Doppler Anemometry T2 - Lasermethoden in der Strömungsmesstechnik, 20. Fachtagung, 04. - 06. September 2012, Rostock Y1 - 2012 SN - 978-3-9805613-8-9 PB - GALA CY - Karlsruhe ER - TY - CHAP A1 - Borcia, Ion-Dan A1 - Harlander, Uwe A1 - Seelig, Torsten A1 - Egbers, Christoph T1 - Comparing the spectrum of wave attractor frequency bands and the eigenspectrum of fluid in a rotating annulus with inclined inner cylinder T2 - Book of abstracts, 9th European Fluid Mechanics Conference (EFMC), 9-13 September, Rome, Italy Y1 - 2012 UR - http://www.efmc9.eu/absbook/index.html ER - TY - CHAP A1 - Seelig, Torsten A1 - Harlander, Uwe A1 - Borcia, Ion-Dan A1 - Scurtu, Nicoleta A1 - Egbers, Christoph A1 - Klein, Marten A1 - Ghasemi, Abouzar A1 - Will, Andreas A1 - Schaller, Eberhard T1 - Inertial waves in rotating cylindrical annulus: theory, experiment and simulations T2 - Book of abstracts, 9th European Fluid Mechanics Conference (EFMC), 9-13 September, Rome, Italy Y1 - 2012 UR - http://www.efmc9.eu/absbook/index.html ER - TY - CHAP A1 - Harlander, Uwe A1 - Wright, G. B. A1 - Egbers, Christoph T1 - Reconstruction of the 3D flow field in a differentially heated rotating annulus laboratory experiment T2 - European Geosciences Union (EGU), 9th General Assembly, Vienna, Austria, 22-27 April Y1 - 2012 UR - http://meetingorganizer.copernicus.org/EGU2012/EGU2012-5368.pdf N1 - EGU2012-5368 ER - TY - CHAP A1 - Koch, Sandy A1 - Harlander, Uwe A1 - Hollerbach, Rainer A1 - Egbers, Christoph T1 - Inertial waves in a rotating spherical shell: Comparison between numerical simulations and laboratory experiments T2 - European Geosciences Union (EGU), 9th General Assembly, Vienna, Austria, 22-27 April Y1 - 2012 UR - http://meetingorganizer.copernicus.org/EGU2012/EGU2012-7342.pdf N1 - EGU2012-7342 ER - TY - CHAP A1 - Borcia, Ion-Dan A1 - Harlander, Uwe A1 - Seelig, Torsten A1 - Egbers, Christoph T1 - Comparing attractor frequency bands with eigen frequencies for a confined rotating fluid T2 - European Geosciences Union (EGU), 9th General Assembly, Vienna, Austria, 22-27 April Y1 - 2012 UR - http://meetingorganizer.copernicus.org/EGU2012/EGU2012-10411.pdf N1 - EGU2012-10411 ER - TY - CHAP A1 - Herzog, Nicoleta A1 - Gorenz, Paul A1 - Egbers, Christoph T1 - High pressurized CO2 release CFD calculations from onshore pipeline leakages T2 - European Geosciences Union (EGU), 10th General Assembly, Vienna, Austria, 07 – 12 April 2013 Y1 - 2013 UR - http://meetingorganizer.copernicus.org/EGU2013/EGU2013-1879.pdf N1 - EGU2013-1879 ER - TY - CHAP A1 - Gorenz, Paul A1 - Herzog, Nicoleta A1 - Egbers, Christoph T1 - Investigation of CO2 release pressures in pipeline cracks T2 - European Geosciences Union (EGU), 10th General Assembly, Vienna, Austria, 07 – 12 April 2013 Y1 - 2013 UR - http://meetingorganizer.copernicus.org/EGU2013/EGU2013-5816-1.pdf N1 - EGU2013-5816 ER - TY - GEN A1 - Butt, Usman A1 - Egbers, Christoph T1 - Aerodynamic Characteristics of Flow over Circular Cylinders with Patterned Surface T2 - International Journal of Materials, Mechanics and Manufacturing Y1 - 2013 UR - http://www.ijmmm.org/papers/027-TT002.pdf VL - 1 IS - 2 SP - 121 EP - 124 ER - TY - GEN A1 - Borcia, Ion-Dan A1 - Harlander, Uwe T1 - 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 T2 - Theoretical and Computational Fluid Dynamics Y1 - 2013 U6 - https://doi.org/10.1007/s00162-012-0278-6 SN - 1432-2250 VL - 27 IS - 3-4 SP - 397 EP - 413 ER - TY - GEN A1 - Herzog, Nicoleta A1 - Egbers, Christoph T1 - Atmospheric dispersion of CO2 released from pipeline leakages T2 - Energy Procedia Y1 - 2013 SN - 1876-6102 VL - 40 SP - 232 EP - 239 ER - TY - GEN A1 - Futterer, Birgit A1 - Yoshikawa, Harunori A1 - Mutabazi, Innocent A1 - Egbers, Christoph ED - Beysens, Daniel ED - Loon, Jacobus van T1 - Facilities to alter weight - Electric Fields T2 - Generation and Applications of Extra-Terrestrial Environments on Earth Y1 - 2015 SN - 978-87-93237-53-7 SN - 978-87-93237-54-4 SP - 91 EP - 100 PB - River Publ. CY - Aalborg ER - TY - GEN A1 - Shahirpour, Amir A1 - Herzog, Nicoleta A1 - Egbers, Christoph T1 - Towards CFD Modeling of Carbon Dioxide Turbulent Pipe Line Transportation T2 - Energy Procedia Y1 - 2013 UR - http://www.sciencedirect.com/science/article/pii/S187661021301641X UR - 1876-6102 U6 - https://doi.org/10.1016/j.egypro.2013.08.047 VL - 40 SP - 408 EP - 417 ER - TY - GEN A1 - Vincze, Miklos A1 - Borchert, Sebastian A1 - Achatz, Ulrich A1 - Larcher, Thomas von A1 - Baumann, Martin A1 - Liersch, Claudia A1 - Remmler, Sebastian A1 - Beck, Teresa A1 - Alexandrov, Kiril A1 - Egbers, Christoph A1 - Fröhlich, Jochen A1 - Heuveline, Vincent A1 - Hickel, Stefan A1 - Harlander, Uwe T1 - Benchmarking in a rotating annulus: a comparative experimental and numerical study of baroclinic wave dynamics T2 - Meteorologische Zeitschrift Y1 - 2015 U6 - https://doi.org/10.1127/metz/2014/0600 SN - 1610-1227 SN - 0941-2948 VL - 23 IS - 6 SP - 611 EP - 635 ER - TY - GEN A1 - Kupka, Friedrich A1 - Losch, Martin A1 - Zaussinger, Florian A1 - Zweigle, Thomas T1 - Semi-convection in the ocean and in stars: A multi-scale analysis T2 - Meteorologische zeitschrift N2 - 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 MetStröm 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. KW - hydrodynamics KW - numerical simulation KW - turbulence Y1 - 2015 UR - https://www.schweizerbart.de/papers/metz/detail/24/84729/Semi_convection_in_the_ocean_and_in_stars_A_multi_scale_analysis?l=DE U6 - https://doi.org/10.1127/metz/2015/0643 SN - 0941-2948 VL - 24 IS - 3 SP - 343 EP - 358 ER - TY - GEN A1 - Seelig, Torsten A1 - Kielczewski, Kamil A1 - Tuliszka-Sznitko, Ewa M. A1 - Harlander, Uwe A1 - Egbers, Christoph A1 - Bontoux, Patrick T1 - Taylor-Couette flow with asymmetric end-walls boundary conditions T2 - 15th European turbulence conference (ETC), Delft, The Netherlands (2015) Y1 - 2015 UR - http://www.etc15.nl/proceedings/proceedings/documents/132.pdf ER - TY - GEN A1 - Egbers, Christoph A1 - Gorenz, Paul A1 - Schmidt, Marcus A1 - Wolf, Carsten T1 - 3-D-CFD-Simulation der Schmierspaltströmung in einem Radialgleitlager T2 - Motortechnische Zeitschrift : MTZ Y1 - 2015 SN - 2192-8843 VL - 76 IS - 7-8 SP - 66 EP - 73 ER - TY - THES A1 - Christl, Andreas T1 - 3D-CFD-Simulation der exzentrischen Taylor-Couette Strömung mit Bezug auf das hydrodynamische Gleitlager Y1 - 2015 SN - 978-3-73699-081-4 SP - II, 109 PB - Cuvillier CY - Göttingen ER - TY - THES A1 - König, Franziska T1 - Investigation of High Reynolds Number Pipe Flow Y1 - 2015 SN - 978-3-73699-049-4 PB - Cuvillier CY - Göttingen ER - TY - CHAP A1 - Seelig, Torsten A1 - Harlander, Uwe A1 - Kielczewski, Kamil A1 - Tuliszka-Sznitko, Ewa M. A1 - Bontoux, Patrick A1 - Egbers, Christoph T1 - Study of transitional and turbulent flows in rotor/stator cavities T2 - ICTW 19, Book of Abstracts, 19th International Couette-Taylor Workshop, June 24 - 26, 2015 Cottbus, Germany Y1 - 2015 SP - 118 EP - 119 CY - Cottbus ER - TY - GEN A1 - Hoff, Michael A1 - Harlander, Uwe A1 - Egbers, Christoph T1 - Experimental survey of linear and nonlinear inertial waves and wave instabilities in a spherical shell T2 - Journal of Fluid Mechanics Y1 - 2016 U6 - https://doi.org/10.1017/jfm.2015.743 SN - 1750-6859 IS - vol. 789 SP - 589 EP - 616 ER - TY - THES A1 - Dahley, Sandy T1 - Laboratory experiments and numerical simulations of inertial waves in a rotating spherical shell Y1 - 2016 SN - 978-3-73699-198-9 PB - Cuvillier Verlag CY - Göttingen ER - TY - CHAP A1 - Öngüner, Emir A1 - Zanoun, El-Sayed A1 - König, Franziska A1 - Egbers, Christoph T1 - Structure Investigation in Pipe Flow at High Reynolds Numbers Y1 - 2016 SN - 978-3-319-29130-7 SP - 217 EP - 220 PB - Springer CY - Berlin ER - TY - GEN A1 - Zanoun, El-Sayed A1 - Öngüner, Emir A1 - Egbers, Christoph T1 - Conventional measuring probes in the wall layer of turbulent subsonic ducted flows T2 - Thermophysics and Aeromechanics Y1 - 2016 SN - 1531-8699 SN - 0869-8643 VL - 23 IS - 3 SP - 329 EP - 342 ER - TY - GEN A1 - Veen, Roeland C. A. van der A1 - Huisman, Sander G. A1 - Merbold, Sebastian A1 - Harlander, Uwe A1 - Egbers, Christoph A1 - Lohse, Detlef A1 - Sun, Chao T1 - Taylor Couette turbulence at radius ratio =0,5:scaling, flow structures and plumes T2 - Journal of Fluid Mechanics Y1 - 2016 U6 - https://doi.org/10.1017/jfm.2016.352 SN - 1469-7645 SN - 0022-1120 VL - 799 SP - 334 EP - 351 ER - TY - GEN A1 - Hoff, Michael A1 - Harlander, Uwe A1 - Triana, Santiago Andrés T1 - Study of turbulence and interacting inertial modes in a differentially rotating sphericel shell experiment T2 - Physical Review Fluids Y1 - 2016 U6 - https://doi.org/10.1103/PhysRevFluids.1.043701 VL - 1 IS - 4 SP - 043701 ER -