Forced internal wave attractors: Linear inviscid theory Full article
| Journal |
Physical Review Fluids
ISSN: 2469-990X |
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| Output data | Year: 2023, Volume: 8, Number: 8, Article number : 084801, Pages count : 28 DOI: 10.1103/physrevfluids.8.084801 | ||||||
| Authors |
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| Affiliations |
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Funding (2)
| 1 | Российский научный фонд | 20-11-20189 |
| 2 | Министерство науки и высшего образования Российской Федерации | FWGG-2021-0011 |
Abstract:
In this paper, we study internal wave focusing in a trapezoidal domain with one moving boundary. Using linear theory, we construct an exact analytic solution for the case of ideal uniformly stratified Boussinesq fluid, which is appropriate for developing weakly nonlinear
theory. This analytical solution is compared against the results of direct numerical simulations performed with the help of the spectral element method. It is shown that the nested structure of wave beams in the ideal-fluid solution is consistent with the peculiarities of the wave-beam profiles obtained in weakly viscous numerical simulations performed in a range of Stokes numbers covering three orders of magnitude beyond the typical experimental values. Finally, we explore the role of the shape of the wave generator on the instantaneous profiles and envelopes of the wave beams.
Cite:
Makridin Z.V.
, Khe A.K.
, Sibgatullin I.N.
, Ermanyuk E.V.
Forced internal wave attractors: Linear inviscid theory
Physical Review Fluids. 2023. V.8. N8. 084801 :1-28. DOI: 10.1103/physrevfluids.8.084801 WOS Scopus РИНЦ OpenAlex
Forced internal wave attractors: Linear inviscid theory
Physical Review Fluids. 2023. V.8. N8. 084801 :1-28. DOI: 10.1103/physrevfluids.8.084801 WOS Scopus РИНЦ OpenAlex
Dates:
| Submitted: | Nov 21, 2022 |
| Accepted: | Jun 28, 2023 |
| Published print: | Aug 4, 2023 |
Identifiers:
| Web of science: | WOS:001052928900001 |
| Scopus: | 2-s2.0-85168802216 |
| Elibrary: | 61046778 |
| OpenAlex: | W4385577541 |