Stratification effects in boundary layer flow over hills
Stratification effects in boundary layer flow over hills
复制标题
山丘边界层流的分层效应
DOI：
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发表时间：
1978
期刊：
影响因子：
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通讯作者：
R. Sykes
中科院分区：
文献类型：
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作者：
R. Sykes
对地形上边界层流动的三层分析进行了扩展，以包括自由流中稳定层结的影响。对线性化三维流动的分析表明，由于三层结构的相互作用，外部区域产生的重力波对边界层内的流动有显著的影响。二维非线性方程的数值解显示了层结对分离的抑制作用，并给出了比线性化理论所期望的更大的重力波的振幅。
The triple-deck analysis of boundary layer flow over topography is extended to include the effects of stable stratification in the free-stream. Analysis of the linearized three-dimensional flow shows that gravity waves generated in the outer region have a significant influence on the flow in the boundary layer due to the interactive nature of the triple-deck structure. Numerical solution of the two-dimensional nonlinear equations shows the inhibition of separation by the stratification, and also gives larger amplitudes of the generated gravity waves than would be expected from the linearized theory.