Maximization of inertial waves focusing in linear and nonlinear regimes
This study investigates the focusing of inertial waves (IW) generated by an axisymmetric torus oscillating in a rotating fluid. A full range of vertical kinetic energy propagation angles at the focal point was explored using direct numerical simulations (DNS). A systematic comparison was made between linear DNS and nonlinear DNS. It was found that there is an optimal angle that maximizes energy transfer from the torus to the focal zone. In addition, triadic IW resonances were identified as a source of turbulence and a large central vertical vortex was also identified in agreement with the theory of Davidson et al. (2006).
Authors
- A. Gaber Mohamed (ORCID: https://orcid.org/0009-0005-2598-6755)
- Fabien S. Godeferd (ORCID: https://orcid.org/0000-0002-8898-5451)
- Alexandre Delache (ORCID: https://orcid.org/0009-0000-6925-6520)
- Yongqi Wang (ORCID: https://orcid.org/0000-0003-1292-0384)
- Martin Oberlack (ORCID: https://orcid.org/0000-0002-5849-3755)
- Jie Liu (ORCID: https://orcid.org/0000-0003-3998-4548)
Institutions
- Université Claude Bernard Lyon 1 (FR)
- École Centrale de Lyon (FR)
- Technische Universität Darmstadt (DE)
- Histoire et Sources des Mondes Antiques (FR)
- Université Jean Monnet (FR)
Publication Details
- Journal
- Physical Review Fluids
- Published
- 2024-09-13
- DOI
- https://doi.org/10.1103/physrevfluids.9.094605
- Citations
- 1
- Primary Topic
- Fluid Dynamics and Turbulent Flows
- Type
- article
- Field-Weighted Citation Impact
- 0.37
Funders
- Agence Nationale de la Recherche