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Fluid Dynamics

Erschienen in:

01.05.2021

Vertical Momentum Transfer Induced by Internal Waves in a Two-Dimensional Flow

verfasst von: N. O. Ankudinov, A. A. Slepyshev

Erschienen in: Fluid Dynamics | Ausgabe 3/2021

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Abstract—

Free internal waves in a two-dimensional vertically inhomogeneous stratified flow are considered in the Boussinesq approximation with account of the Earth’s rotation. The equation for the amplitude of the vertical velocity of a fixed mode of internal waves has complex coefficients; therefore, the eigenfunction and the wave frequency are complex. The imaginary part of frequency is small and can be both positive and negative. For this reason, both weak damping and weak strengthening of the wave are possible depending on the wavenumber and the mode number. The vertical wave momentum fluxes are nonzero and can be greater than the corresponding turbulent fluxes.

Vorheriger Artikel Investigation of the Flow Structure in a Model Scramjet Air Intake with Transverse Hydrogen Fuel Injection into Supersonic Crossflow

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Titel: Vertical Momentum Transfer Induced by Internal Waves in a Two-Dimensional Flow
verfasst von: N. O. Ankudinov
A. A. Slepyshev
Publikationsdatum: 01.05.2021
Verlag: Pleiades Publishing
Erschienen in: Fluid Dynamics / Ausgabe 3/2021
Print ISSN: 0015-4628
Elektronische ISSN: 1573-8507
DOI: https://doi.org/10.1134/S0015462821030022

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