DNS of inertial wave attractors in a librating annulus with height-dependent gap width
- Direct numerical simulations (DNS) of inertial wave attractors have been carried out in a librating Taylor-Couette system with broken mirror symmetry in the radial-axial cross-section. The inertial wave excitation mechanism and its localisation at the edges was clarified by applying boundary layer theory. Additional resonance peaks in the simulated response spectra were found to agree with low-order wave attractors obtained by geometric ray tracing. Numerics and theory are in qualitative agreement with recent lab experiments.
Author: | Marten KleinORCiD, Abouzar Ghasemi, Torsten Seelig, Ion-Dan Borcia, Uwe HarlanderORCiD, Andreas Will |
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URL: | http://www.etc15.nl/proceedings/proceedings/documents/134.pdf |
Title of the source (English): | 15th European turbulence conference (ETC), Delft, The Netherlands (2015) |
Document Type: | Conference Proceeding |
Language: | English |
Year of publication: | 2015 |
Tag: | direct numerical simulations; geophysical and astrophysical turbulence; waves in rotating fluids |
Faculty/Chair: | Fakultät 2 Umwelt und Naturwissenschaften / FG Atmosphärische Prozesse |
Fakultät 3 Maschinenbau, Elektro- und Energiesysteme / FG Aerodynamik und Strömungslehre | |
Institution name at the time of publication: | Fakultät für Maschinenbau, Elektrotechnik und Wirtschaftsingenieurwesen (eBTU) / LS Aerodynamik und Strömungslehre |
Fakultät für Umweltwissenschaften und Verfahrenstechnik (eBTU) / LS Umweltmeteorologie |