基于VOF模型的泄槽内掺气槽的三维流场数值模拟  

VOF model based 3-D flow field numerical simulation on aerator in discharge chute

作　　者：王建[1] 张志雁[2] 万连宾[1] 牧振伟[2] 

机构地区：[1]新疆额尔齐斯河流域开发工程建设管理局,新疆乌鲁木齐830000 [2]新疆农业大学水利与土木工程学院,新疆乌鲁木齐830052

出　　处：《水利水电技术》2011年第6期26-29,共4页Water Resources and Hydropower Engineering

摘　　要：通过采用RNG k～ε模型模拟湍流,利用VOF法追踪自由水面,对设置掺气槽前后两种方案的陡坡泄槽段三维流场进行数值模拟。模拟结果表明,VOF模型是模拟带自由表面水力学问题的较好方法,能够较好地对掺气空腔的自由面进行追踪。数值模拟结果与模型实测值二者吻合良好,表明该种方法可用于计算掺气槽内掺气空腔的长度。Both the 3-D flow fields of the discharge chute section on steep slope before and after the arrangement of the aerator are numerically simulated through simulating the turbulence based on RNG k -ε model and tracing the free water surface with VOF Method. The simulation result shows that VOF model is a better method for simulating the hydraulic issues with free water surface ; with which the free water surface of the aerating cavity can be better traced. Furthermore, the result from the numerical simulation coincides perfectly with the measured value of the model, and then, indicates that this method can applied to calculation of the length of the aerating cavity of the aerator.

关 键 词：掺气槽 VOF模型 数值模拟 

分 类 号：TV135.2[水利工程—水力学及河流动力学]