TY - CHAP A1 - Klein, Marten A1 - Ghasemi, Abouzar A1 - Seelig, Torsten A1 - Borcia, Ion-Dan A1 - Harlander, Uwe A1 - Will, Andreas T1 - DNS of inertial wave attractors in a librating annular cavity with a height-dependent gap T2 - ICTW 19, Book of Abstracts, 19th International Couette-Taylor Workshop, June 24 - 26, 2015 Cottbus, Germany KW - waves in rotating fluids KW - geophysical and geological flows KW - direct numerical simulations Y1 - 2015 SP - 122 EP - 123 CY - Cottbus ER - TY - CHAP A1 - Klein, Marten A1 - Ghasemi, Abouzar A1 - Seelig, Torsten A1 - Borcia, Ion-Dan A1 - Harlander, Uwe A1 - Will, Andreas T1 - DNS of inertial wave attractors in a librating annulus with height-dependent gap width T2 - 15th European turbulence conference (ETC), Delft, The Netherlands (2015) N2 - 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. KW - direct numerical simulations KW - geophysical and astrophysical turbulence KW - waves in rotating fluids Y1 - 2015 UR - http://www.etc15.nl/proceedings/proceedings/documents/134.pdf ER -