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Large Eddy Simulation of Turbulence Properties in a Uniformly Sheared and Stably Stratified Flow
Pages: 52-58
Year: Issue:  1
Journal: Acta Scientiarum Naturalium Universitatis Neimongol

Keyword:  分层湍流梯度Richardson数湍流输运大涡模拟;
Abstract: 采用大涡模拟的方法,研究了均匀剪切稳定分层流动.主要对不同梯度Richardson数下湍流动量和标量输运特性进行分析研究.结果表明:随着梯度Richardson数的增大,湍流动能减小,湍流势能增大;垂向热通量和雷诺应力减弱,流向热通量增强;并且在强分层情况下,存在动量和热量的逆梯度输运现象.
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