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本文应用Chwang提出的线性透水造波机理论,求得了有限水深、半无限长渠道中,其一端的铅直不透水板和该板附近的铅直透水板作活塞式运动的几种组合情况所产生的自由表面波的波形,并对当无量纲的波的影响参数C一定时,无量纲孔隙影响参数G对波形的影响进行了研究。我们发现,当两板间距为表面行进波半波长的倍数时,将出现波的陷井现象或波形的不变性现象,并对可能出现的共振现象进行了讨论。通过实验对所提理论进行了初步验证。
In this paper, the theory of linear percolation wave machine proposed by Chwang is used to obtain several combinations of the piston impervious plates in the limited water depth and semi-infinite channels with the vertical impermeable plate at one end and the vertical water permeable plate near the plate The waveforms of the free surface wave generated by the non-dimensional wave influence parameter G are studied. We found that when the distance between the two plates is a multiple of half the wavelength of the surface traveling wave, the phenomenon of wave trapping or waveform invariance will appear and the possible resonance phenomenon will be discussed. Through experiments, the proposed theory has been preliminarily verified.