A model for layer formation in stably stratified turbulence
A model for layer formation in stably stratified turbulence
复制标题
稳定分层湍流中的层形成模型
DOI：
10.1063/1.1344182
复制
发表时间：
2001
影响因子：
4.6
通讯作者：
A. Kerstein
中科院分区：
文献类型：
--
作者：
S. Wunsch;A. Kerstein
稳定分层湍流在天体物理学和天体物理学中很常见，并且经常表现出分层结构，其中几乎恒定流体密度的大区域被尖锐的密度梯度分开。实验已经证明，在适当的条件下，稳定分层流体的搅拌产生这些层结构。本文用一个随机一维模型研究稳定分层湍流中的层流形成。结果支持混合长度参数先前提出的描述层在稳定状态。
Stably stratified turbulent flows are common in geophysics and astrophysics, and frequently exhibit layered structures in which large regions of nearly constant fluid density are separated by sharp density gradients. Experiments have demonstrated that, under suitable conditions, the stirring of a stably stratified fluid generates these layer structures. In this paper, a stochastic one-dimensional model is used to study layer formation in stably stratified turbulence. The results support mixing length arguments previously proposed to describe layers in steady state.