Calculation of the neutral wind profile following a large step change in surface roughness
Calculation of the neutral wind profile following a large step change in surface roughness
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计算表面粗糙度发生较大阶跃变化后的中性风廓线
DOI：
10.1002/qj.49710444012
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发表时间：
1978
期刊：
影响因子：
--
通讯作者：
D. Wood
中科院分区：
文献类型：
--
作者：
D. Wood
本文用三种计算方法预报了边界层风廓线和地面切变对地面粗糙度大阶跃变化的响应，并与布拉德利的测量结果进行了比较。第一种方法，它假设局部平衡存在于调整区域中的任何地方，表现不如第二和第三种方法，这两种方法都采用了运输方程的剪切应力。它还表明，额外的复杂性的第三种方法，在允许的耗散长度尺度上的非局部效应，并没有得到一贯比第二种方法更好的结果。
The response of the boundary layer wind profile and the surface shear to a large step change in surface roughness is predicted by three calculation methods and the predictions are compared with measurements by Bradley. The first method, which assumes that local equilibrium exists everywhere in the adjusting region, performs less well than the second and third methods, which both employ a transport equation for the shear stress. It is also shown that the extra sophistication of the third method, in allowing for the non-local effects on the dissipation length scale, does not give consistently better results than the second method.