The effect of rainfall on the wind in the surface layer
The effect of rainfall on the wind in the surface layer
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DOI：
10.1007/bf02033915
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发表时间：
1972-12
影响因子：
4.3
通讯作者：
D. Caldwell;W. Elliott
中科院分区：
文献类型：
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作者：
D. Caldwell;W. Elliott
落入风切变区的雨滴不会立即调整其水平速度以适应新的风。因此，产生了使空气加速的应力。用数值方法研究了雨滴落在对数风廓线层中的影响。我们发现风对这种情况的调整相当小，即使在大雨条件下也只能勉强检测到。对应力分布的影响较大。在某些条件下，最低10 m处的应力变化可能为10- 20%或更大。
Raindrops falling into a wind-shear zone do not adjust their horizontal speeds immediately to the new wind. Thus, stresses develop which accelerate the air. The effect of raindrops falling into a layer with a logarithmic wind profile is investigated numerically. We find the adjustment of the wind to this situation to be quite small and only barely detectable, even in heavy rain conditions. The effect on the stress distribution is greater. Stress variations of 10–20 % and greater in the lowest 10 m are possible under certain conditions.