利用依赖波浪成长状态波龄在表面风应力作用下的潮汐风暴潮数值模式,对渤海2个风过程个例引起的水位做了数值模拟研究,并给出了波浪作用下表面风应力系数大小的定量计算.个例1数值模拟结果表明,在最大风速时,考虑波浪作用的表面风应力数值是不考虑波浪作用时的1.5倍;相应的水位比不考虑波浪作用时的结果增大16cm,与实测值更加吻合.个例2的计算结果也得到了类似结论,表明在进行潮汐风暴潮数值模拟时,必须考虑波浪的作用.
With the tide-surge numerical mode under the action of surface wind stress, which is dependent on the age of waves in the growth stage, the water level variation of Bohai Sea during 2 wind processes was studied by numerical simulation, and the surface wind stress coefficient under action of waves was calculated. Case study shows that surface wind stress with consideration of wave action is 1.5 times of that without consideration of wave action, and water level increases 16 cm if wave action is taken into account. The simulated results were in good agreement with measured data. Therefore, the wave action is necessary to be considered in numerical simulation of tide-surges.