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对无限长渠道中小振幅入射波通过两块间距为ｌ，透水性能不同的多孔透水板的反射和透射进行了研究。应用分离变量法得到了反射波和透射波的波形。结果表明，当ｌ为入射波半波长的倍数时，反射波和透射波振幅最大，消波效果差，最佳消波率为５０％。当ｌ为入射波１／４波长加半波长的倍数时，反射波和透射波振幅最小，消波效果好，最佳消波率大于５０％。此外，还得到了无反射波的条件。
The reflection and transmission of medium and small amplitude incident waves through two porous plates with different spacing and water permeability were studied. The waveforms of the reflected wave and the transmitted wave were obtained by using the method of separating variables. The results show that when l is a multiple of the half wavelength of the incident wave, the amplitude of the reflected wave and the transmitted wave is the largest, the wave elimination effect is poor, and the best elimination rate is 50%. When l is the 1/4 wavelength of the incident wave plus a multiple of half wavelength, the amplitude of the reflected wave and the transmitted wave is the smallest, the effect of the wave elimination is good, and the best elimination rate is more than 50%. In addition, there is no reflection wave conditions.