摘要
本文利用k -ε紊流模型模拟坝面上的复杂紊流流场 ,并且采用非结构网格来处理复杂的边界形状 ,对自由水面 ,引入水 -气两相分层流理论中的流体体积分数法 (VOF)来迭代求解。通过模拟计算 ,得到坝面水流的水面线、速度场、压力场等 ,并与模型试验实测结果进行对比分析 。
The k-ε turbulence model is applied to simulate the complicated turbulent overflow in the surface of stepped spillway. The non structure grid is used to treat the irregular boundary and the volume of fluid method(VOF) for water air two phase flow is introduced into the iteration of calculation. The curvilinear free surface, velocity and pressure distributions are obtained. The calculated result is in good agreement with the experimental data.
出处
《水利学报》
EI
CSCD
北大核心
2002年第9期20-26,共7页
Journal of Hydraulic Engineering
基金
国家自然科学基金资助项目 (5 98790 13 )
