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对平行放置的波幅与波数不同的两块波纹板形成的通道内的定型层流流动,以壁面波纹的波幅为小量进行摄动,建立近似分析模型,得到了速度分布表达式,考察了流量和阻力系数与壁面波纹的波幅和波数之间的关系。结果表明,流量随波纹板的波幅和波数的增大而增大,而壁面阻力则随两块板相对波数的大小、波幅和波数呈现不同的变化。
The laminar flow in the channel formed by two corrugated plates with different amplitude and wave number placed in parallel was perturbed with the amplitude of the wall corrugations as a small amount to establish the approximate analytical model and the velocity distribution expression was obtained. And the relationship between the drag coefficient and the amplitude and wave number of the wall corrugations. The results show that the flow rate increases with the increase of corrugation amplitude and wave number, while the wall resistance changes with the relative wave number, amplitude and wave number of the two plates.