曲面急变流水面线及床面压力的计算

Calculation of Water Surface Line and Bed Pressure on Curved Channels

给出了一个实用、有效的曲面急变流水面线及床面压力的计算方法。经理论分析 ,充分考虑了曲率、水流重力等因素的影响 ,建立了水流的连续方程和动量积分方程 ,应用四阶龙格库塔求解 ,得出其水深、压强和流速值。计算结果表明 ,计算值与实测值吻合良好。

A practical and effective calculation method of water surface line and bed pressure on curved beds of channels is presented in this paper. The continuity and momentum equations are established, in which the curvature and the gravity are considered. The Runge-Kutta method is used to obtain the numerical result. The outcome indicates that the calculated values accord with the measured ones.