摘要
本文针对目前大量应用的恒定流紊流数学模型必须给出流速的人流边界条件，而实际孔口泄流的入流流速和过流能力均未知的问题，通过调整入流流速，直至坝前距入口较远处满足静压分布的方法，得到孔口泄流能力和相应的入流速度。其结果与物理模型试验值基本一致。
In the widely applied turbulence mathematical models of constant flow,the inflow velocity must be known.However,the inflow velocity and discharge of an outlet in the archdam is not known and needs calculating.In this paper,the inflow velocity is adjusted till the pressure is achieved at the preference point,which is far away from the outlet,and the pressure is equal to the hydrostatic pressure at that point.Therefore,the outlet discharge and the inflow velocity can be obtained.The calculated result is in agreement with the measured one in physical model.
基金
国家自然科学基金
