摘要
本文将紊流两方程ｋ－ε模型应用于明流泄洪洞的流场分析，采用适体坐标变换处理复杂的边界及模拟自由水面，获得了流速、紊动能、耗散率、压力及水深等参数的分布。与有关实测资料对比分析，结果令人满意。
Standard k-εtwo equations model is employed to predict turbulent flow over spillway tunnel,The technique of boundary-fitted coordinate systems is the method to deal with the irregular boundary and free surface in this paper.The detailed distributions of variables,including velocities,turbulence kinetic energy,turbulence dissipation rate,wall pressures and water surface profile are attained.Comparison between the numerical results and experiment data shows a satisfactory agreement.
出处
《水动力学研究与进展（A辑）》
CSCD
北大核心
1996年第6期633-639,共7页
Chinese Journal of Hydrodynamics
关键词
明流泄洪洞
紊流模型
泄洪洞
数值模拟
流场
spillway tunnel,k-ε turbulence model,boundary-fitted coordinate systems,numerical simulation.
