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首页> 外文期刊>Journal of oceanography >A New Empirical Formula for the Aerodynamic Roughness of Water Surface Waves
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A New Empirical Formula for the Aerodynamic Roughness of Water Surface Waves

机译：水面波气动粗糙度的新经验公式

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摘要

A new empirical formula for the aerodynamic roughness of water surface waves has been derived from laboratory experimental results using dimensional analysis. The formula has different forms according to wind speed: at moderate wind speeds the formula is a function of the friction velocity of wind, the surface tension, the water density, the kinematic viscosity of water and the acceleration of gravity; at strong winds the formula is expressed by the Charnock relation. The aerodynamic roughness does not depend on such wave state parameters as the spectral peak frequency or the steepness of waves, unlike almost all parameterizations that have been proposed to date. The drag coefficient at moderate winds depends on the surface tension of water and the water temperature through the temperature dependence of the kinematic viscosity of water.
机译：利用尺寸分析从实验室实验结果中得出了水表面波空气动力学粗糙度的新经验公式。根据风速，公式具有不同形式：在中等风速下，公式是风的摩擦速度，表面张力，水密度，水的运动粘度和重力加速度的函数;在强风下，该公式由夏诺克关系表示。空气动力学粗糙度不依赖于诸如波谱的峰值频率或波的陡度之类的波状态参数，这与迄今为止已提出的几乎所有参数化方法不同。中风时的阻力系数取决于水的表面张力和水的温度，而水的运动粘度与温度有关。

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