两相流理论在挟沙水流流速分布和阻力求解中的应用

Application of the Theory of Solid and Fluid Two-phase flow in Determination of Velocity Distribution and Resistance Coefficient for Sediment-landen Flow

利用紊流条件下的固液两相流基本方程,结合推移质运动水流的概化模式,推导出定床和动床两种情况下明渠挟带推移质水流的流速分布和阻力系数公式。通过实测资料的计算,证明了理论分析的合理性.

By use of the basic theory of the solid and fluid two-phase flow and charactericstics oftwo-dimensional steady uniform sediment-landen flow in open channel the formula of velocitydistribution and resistance coefficient in the bed-load-transporting flow is derived. The computedresults using the formula are in good agreements with flume experiment data.