基于CFX的齿型构件混合堤翻坝水流力分析

摘要

基于CFX流体计算软件,对齿型构件混合堤翻坝水流的流场进行数值模拟.分析翻坝水流自由液面及流场的变化,提取作用在齿型构件上的水流力,并与理论公式计算所得水流力进行对比.结果表明,CFX可用于计算复杂几何体所受的水流力,而由于齿型构件混合堤翻坝水流流场与绕流流场相比发生了本质性的变化,其水流力的计算不能直接采用水流力计算的理论公式.%A numerical simulation has been made for the flow field where water flows across a composite dike with tooth-shape structures by using CFX fluid calculation software.By analyzing the variation of free surface and flow field of water flow over the above dike,getting current force acting on the tooth-shape structures and comparing it with the calculation results based on theoretical formula,CFX software can be used in the calculation of current force acting on a complex geometric solid.Because the flow field where water flows across a composite dike with tooth-shape structures varies essentially in comparison with circling flow field,the theoretical formula don't apply to the calculation of current force of the former one.