【摘要】 采用零方程模型对溢流坝上紊流边界层进行数值模拟,引入流函数Ψ将紊流边界层方程组化为常微分方程。用boxmethod对方程进行数值离散,模拟溢流坝紊流边界层的发展。将数值模拟结果与试验结果进行了对比,理论计算与实际观测尚吻合。运用此模型对掺气初生点位置进行了预测,预测出掺气初生点的位置。更多还原

【Abstract】 In this paper the zero-equation model is used to simulate the turbulent boundary layer of a spillway.The turbulent boundary layer equations are changed into ordinary differential equations by steam function(Ψ).The equations discretized by box method,can simulate the development of turbulent boundary layers.Compared with the experimental results,the numerical results coincide with the experimental data.The equations estimate outside the scope of the experimental data and predict location of aeration inception on the spillway.更多还原