浅水波能谱试验研究

对比天然风浪和试验风浪的风场特点，确定了两者特征风速间的换算关系，采用人工风与不规则造波机相结合的方法生成，模拟风浪，延长了试验条件下风浪成长所需的风区长度，在此基础上，利用试验研究的优点，完成了较大范围浅水风浪试验，对浅水波能谱进行了深入探讨。研究表明，比较深水情况，浅水域波能的谱的谱峰变小，谱形更加尖窄，反映出波能趋于集中的特点，对于浅水，给出了波能谱的表达式。

Experimental Study of Wind Wave Spectrum in Shallow Water

wing to the difference between natural sea conditions and laboratory conditions,some modelling problems remain unsolved. First, the natural wind field and boundary differ from those in laboratory. Second,the wind flume length is limited and wind wave can not fully develop. In this paper,the laboratory wind field is analysed and compared with natural wind field. With the help of irregular wave-maker,wind-wave is simulated,and the wind fetch length is extended so that the fully developed wind wave is obtained in laboratory. On this basis,a large number of experiments are conducted in various conditions. The wind wave spectral characteristics for shallow water are obtained and related formulas are proposed.