缅甸DAPEIN水电站溢流坝泄流三维数值模拟

Three dimensional Numerical Simulation of Overflow Dam of DAPEIN Hydropower Station in Myanmar

以k-ε湍流模型封闭Reynods方程,采用VOF法追踪自由水面,对缅甸DAPEIN水电站表孔溢流坝的水流流动进行了三维数值模拟。结果表明,溢流坝的泄流能力、水面线、压力分布与流速分布等数值模拟结果与模型试验实测结果吻合,数值模拟结果可信,选择的紊流模型合理,求解方法可靠,可为工程设计提供全面、合理的参考。

Reynolds equations is closed by the κ-ε turbulent model. Volume of fluid method is used to trace free water surface. The water flow of overflow dam of DAPEIN Hydropower Station in Myanmar is analyzed by three dimensional numerical simulation. The results show that the overflow dam discharge capacity, water surface profile, pressure distribution and velocity distribution is consistent with the measured data of model test, and the numerical simulation result is correct, At the same time, the choice of turbulent model is reasonable and the solving method is reliable. Thus, it provides reference for the engineering design.