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- Publisher
- Springer Journals
- Copyright
- Copyright © Pleiades Publishing, Ltd. 2022. ISSN 0015-4628, Fluid Dynamics, 2022, Vol. 57, No. 2, pp. 183–192. © Pleiades Publishing, Ltd., 2022. Russian Text © The Author(s), 2022, published in Izvestiya RAN. Mekhanika Zhidkosti i Gaza, 2022, Vol. 57, No. 2, pp. 77–86.
- ISSN
- 0015-4628
- eISSN
- 1573-8507
- DOI
- 10.1134/s0015462822020094
- Publisher site
- See Article on Publisher Site
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 and turbulent viscosity and diffusion. The third-order implicite Adams method is used to solve numerically the boundary-value problem for the amplitudr of vertical velocity of internal waves. It is found that the eigenfunction and the wave frequency are complex. Taking turbulent viscosity and diffusion into account leads to the fact that the imaginary part of wave frequency is negative, i.e., wave is damped. The vertical wave momentum fluxes are nonzero and can be commensurable with or greater than the corresponding turbulent fluxes.
Journal
Fluid Dynamics – Springer Journals
Published: Apr 1, 2022
Keywords: : internal waves; imaginary frequency correction; wave momentum flux; turbulent viscosity and diffusion