The power of internal wave attractor Full article
Journal |
Physics of Fluids
ISSN: 1070-6631 |
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Output data | Year: 2025, Volume: 37, Number: 1, Article number : 016607, Pages count : 10 DOI: 10.1063/5.0245269 | ||
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Abstract:
This paper presents a joint experimental and numerical study of quasi-two-dimensional internal wave attractors generated by the angular oscillations of a vertical plate in a trapezoidal domain filled with a uniformly stratified liquid, with a focus on evaluation of the injected power. Experimental velocity fields are measured using standard particle image velocimetry technique, while the direct numerical simulation with Nek5000 is used to solve the two- and three-dimensional Navier–Stokes equations in the Boussinesq approximation. The pressure is obtained by applying a quasi-analytical method to the measured velocity components. The energy flux is calculated using either the, thus, obtained pressure from the experimental data or the pressure calculated directly in the numerical simulations. The oscillating plate is equipped with sensors to simultaneously measure the torque and angular oscillations, allowing for direct experimental measurement of the injected power. Quantitatively, very good agreement is observed between the results of direct measurement of the injected power and the results of three-dimensional numerical simulations. Application of other methods leads to consistent departures, which have an acceptable level and can be attributed either to non-accounted physical effects, e.g., friction at lateral walls absent in two-dimensional simulations, or to the absence of data in some subdomains of the flow, which reduce the quality of the pressure field reconstruction.
Cite:
Shmakova N.
, Makridin Z.
, Rudaya Y.
, Chebotnikov A.
, Boyko O.
, Ermanyuk E.
The power of internal wave attractor
Physics of Fluids. 2025. V.37. N1. 016607 :1-10. DOI: 10.1063/5.0245269 РИНЦ
The power of internal wave attractor
Physics of Fluids. 2025. V.37. N1. 016607 :1-10. DOI: 10.1063/5.0245269 РИНЦ
Dates:
Submitted: | Oct 24, 2024 |
Accepted: | Dec 9, 2024 |
Published online: | Jan 6, 2025 |
Identifiers:
Elibrary: | 79488941 |
Citing:
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