碎波作用下增强型TKE消能研究
Comment on Enhanced TKE Dissipation under Breaking Waves
摘要：
应注意，最近关于增强表面波以下的湍流动能（TKE）耗散的实验的结果可陈述如下。相对于壁层结果$ε= u_{*w}^3/κz$，在深度$0.5 H_{ws} < z < 20 H_{ws}$处，TKE耗散通过因子$15 H_{ws}/z$增强，其中$u_{*w}$为水中摩擦速度，$H_{ws}$为有效风浪高度。对于开阔的海洋条件，这在大多数情况下减少到增强因子$10^6 u_{*w}^2/gz \approx U_{10}^2/gz$。
英文摘要：
It is noted that the results of recent experiments on the enhancement of turbulent kinetic energy (TKE) dissipation below surface waves can be stated as follows. TKE dissipation is enhanced by a factor $15 H_{ws}/z$ at depths $0.5 H_{ws} < z < 20 H_{ws}$ with respect to the wall-layer result $ε= u_{*w}^3/κz$, where $u_{*w}$ is the friction velocity in water and $H_{ws}$ is the significant wind-sea wave height. For open ocean conditions, this reduces in most cases to an enhancement factor $10^6 u_{*w}^2/gz \approx U_{10}^2/gz$.
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