Rainfall effect on wind waves and the turbulence beneath air-sea interface
Rainfall effect on wind waves and the turbulence beneath air-sea interface
复制标题
降雨对风浪和海气界面下湍流的影响
DOI：
10.1007/s13131-013-0372-7
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发表时间：
2013-11
影响因子：
1.4
通讯作者：
L. Xie
中科院分区：
文献类型：
--
作者：
赵栋梁;马昕;刘斌;L. Xie
通过大型风浪槽室内试验，研究了降雨对风浪和湍流的影响。结果表明，在低风速条件下，风波整体衰减，而在高风速条件下，风波整体衰减。降雨对风波的双重影响随降雨量的增加而增加，而降雨区长度的影响不明显。在低风速下，由于波浪受到严重阻尼，降雨显著增强了湍流动能耗散率。在高风速下，TKE耗散率的增大受到抑制，同时风浪的增强得到加强。然而，在野外，降雨通常会阻碍波浪的发展。为了解释降雨对波的这种矛盾作用，假设在波的谱峰与湍流的惯性子范围重叠的情况下，从湍流向波传递能量的可能性。它可以用来解释实验室实验中气体传递速度的阻尼现象，以及与壁面规律相比，TKE耗散率在海面附近的变化。
Rainfall effects on wind waves and turbulence are investigated through the laboratory experiments in a large wind-wave tank. It is found that the wind waves are damped as a whole at low wind speeds, but are enhanced at high wind speeds. This dual effect of rain on the wind waves increases with the increase of rain rate, while the influence of rainfall-area length is not observable. At the low wind speed, the corresponding turbulence in terms of the turbulent kinetic energy (TKE) dissipation rate is significantly enhanced by rainfall as the waves are damped severely. At the high wind speed, the augment of the TKE dissipation rate is suppressed while the wind waves are enhanced simultaneously. In the field, however, rainfall usually hinders the development of waves. In order to explain this contradiction of rainfall effect on waves, a possibility about energy transfer from turbulence to waves in case of the spectral peak of waves overlapping the inertial subrange of turbulence is assumed. It can be applied to interpret the damping phenomenon of gas transfer velocity in the laboratory experiments, and the variation of the TKE dissipation rates near sea surface compared with the law of wall.
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影响因子：
--
作者：
D. Houk;T. Green
通讯作者：
D. Houk;T. Green
DOI：
10.1007/978-94-015-7717-5
发表时间：
1985
影响因子：
3.9
作者：
Y. Toba;H. Mitsuyasu
通讯作者：
Y. Toba;H. Mitsuyasu
影响因子：
4.3
作者：
D. Caldwell;W. Elliott
通讯作者：
D. Caldwell;W. Elliott
DOI：
--
发表时间：
--
期刊：
--
影响因子：
--
作者：
O. Reynolds
通讯作者：
O. Reynolds
影响因子：
--
作者：
C. Zappa;D. T. Ho;W. McGillis;M. Banner;J. Dacey;L. Bliven;Barry B. Ma;J. Nystuen
通讯作者：
C. Zappa;D. T. Ho;W. McGillis;M. Banner;J. Dacey;L. Bliven;Barry B. Ma;J. Nystuen