复式断面明渠水流三维数值模拟  

3D Numerical Simulation for hydraulic characteristics of compound section of open channel

作　　者：吕彬[1] 魏文礼[1] 刘玉玲[1] 

机构地区：[1]西安理工大学水利水电学院,陕西西安710048

出　　处：《水资源与水工程学报》2012年第5期71-73,共3页Journal of Water Resources and Water Engineering

基　　金：国家自然科学基金项目(51178391);陕西省重点学科建设专项资金资助

摘　　要：复式断面渠道水流流场结构比较复杂,本文用耦合式求解器对复式断面明渠水流的三维流场进行了模拟。采用交错网格,界面上的动量差值采用Roe格式,紊流数学模型选用雷诺应力模型。将计算结果与实验结果进行比较,两者的吻合度较好,从而验证了数学模型的可靠性,最后又对复式断面明渠横剖面上水流运动特性进行了分析。The flow field structure of compound channel is more complex.this paper simulated the compound open-channel flows based on reynolds stress model（RSM） and finite volume method（FVM） and also used the coupled solver.It apply Roe averaged flux difference splitting（Roe-FDS） to discretizing flux.The comparison between numerical results and experimental data showed a very good agreement.Finally,the hydraulic characteristics of the cross-section of the compound channel was analyzed.

关 键 词：复式断面明渠 耦合式求解 Roe-FDS 二次流 

分 类 号：TV131.4[水利工程—水力学及河流动力学]