The wettedperimeter of this section is 83.7% of the rectangle in the same discharge, reach slope, roughness coefficient.
在同样水力条件下,最优园底直角断面的湿周是矩形最优断面的83.7%。
2
According to the results, an empirical relationship of the rill wettedperimeter with the flow discharge and the slope gradient is obtained by the regression analysis.