考虑粘度和可压缩性的分层介质波动力学建模特点

IF 1 4区工程技术 Q4 MECHANICS

Fluid Dynamics Pub Date : 2024-03-24 DOI:10.1134/S0015462823603145

V. V. Bulatov

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引用次数: 0

摘要

在这项研究中，考虑到可压缩性和粘性，研究了分层介质波动力学建模的特殊性。研究表明，在真实的海洋条件下，边界层的厚度可达数米，相当于低频模式内部重力波半波长的百分之几，而且，由于在海洋中激发的是几种低频模式，粘度对海洋和大气等天然分层介质的波动力学没有显著影响。考虑到分层介质的可压缩性，研究了描述声重力波脉冲在分层介质中的波动力学的频散关系的主要特征。

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Features of Modeling the Wave Dynamics of Stratified Media Taking into Account Viscosity and Compressibility

In this work the peculiarities of modeling the wave dynamics of stratified media are considered taking into account compressibility and viscosity. It is shown that the boundary layers may have a thickness of up to several meters under real ocean conditions, which is several percent of the half-wavelength of internal gravity waves for lower modes, and, because the several lower modes are excited in the ocean, viscosity has no significant impact on the wave dynamics of natural stratified media, ocean and atmosphere. The main features of dispersion relationships describing the wave dynamics of acoustic-gravity wave pulses in stratified media are investigated taking into account their compressibility.

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来源期刊

Fluid Dynamics MECHANICS-PHYSICS, FLUIDS & PLASMAS

CiteScore

1.30

自引率

22.20%

发文量

审稿时长

6-12 weeks

期刊介绍： Fluid Dynamics is an international peer reviewed journal that publishes theoretical, computational, and experimental research on aeromechanics, hydrodynamics, plasma dynamics, underground hydrodynamics, and biomechanics of continuous media. Special attention is given to new trends developing at the leading edge of science, such as theory and application of multi-phase flows, chemically reactive flows, liquid and gas flows in electromagnetic fields, new hydrodynamical methods of increasing oil output, new approaches to the description of turbulent flows, etc.