Open AccessVertical transport of momentum by internal waves in a shift current
Author(s) -
A. A. Slepyshev,
Н.В. Лактионова
Publication year - 2019
Publication title -
izvestiâ akademii nauk sssr. fizika atmosfery i okeana
Language(s) - English
Resource type - Journals
ISSN - 0002-3515
DOI - 10.31857/s0002-3515556194-200
Subject(s) - physics , perpendicular , amplitude , mechanics , wave shoaling , stokes drift , momentum (technical analysis) , internal wave , current (fluid) , wave propagation , angular momentum , quantum electrodynamics , classical mechanics , computational physics , mechanical wave , optics , geometry , longitudinal wave , mathematics , finance , economics , thermodynamics
In Boussinesq approximation free internal waves are considered at the account of rotation of the Earth and a plane-parallel current, perpendicular to a direction to wave propagation. For homogeneous stratification and at constant shift of speed of a current the boundary-value problem for amplitude of vertical velocity analytically solved and the dispersive parity is defined. Vertical wave fluxes of momentum and two components of Stokes drift speed are defined. Stokes drift speed, cross-section to a direction a wave propagation, is distinct from zero in the presence of the specified shift current. Similar calculations are executed for two-layer model. The vertical wave flux of momentum can exceed a corresponding turbulent flux.