利用Fluent软件对植物坝覆盖下二维两相流场的数值模拟  

2-D Water-air Two-phase Flow Field Covered by Vegetation Dam Based on Fluent Numerical Simulation

作　　者：刘锋[1,2,3] 邱秀云[1,3] 周著[1] 

机构地区：[1]新疆农业大学水利与土木工程学院,新疆乌鲁木齐830052 [2]新疆农业大学发展规划处,新疆乌鲁木齐830052 [3]新疆农业节水与水资源研究中心,新疆乌鲁木齐830052

出　　处：《中国农村水利水电》2011年第1期50-54,共5页China Rural Water and Hydropower

基　　金：国家自然科学基金项目(50269003);新疆水利水电工程重点学科基金项目资助

摘　　要：通过物理模型试验及推导建立植物过流水动力学方程,对植物"柔性坝"过流时的水动力学特性进行了数值研究;利用计算流体力学软件FLUENT,用VOF方法追踪自由水面,采用多孔介质域模拟植物坝覆盖区域,以多孔介质前后压强配合空隙率来确定渗透率,对有植物坝覆盖的水槽二维两相流场进行了数值模拟。将数值计算得到的流速值与模型试验流速值实测结果进行了比对,两者吻合较好。In this paper,the hydrodynamic equation about the flow through plants has established the physical model experiment and theory deduction,and the hydraulic characteristics of vegetation dam is simulated with the established equation.And the two-phase flow field of the water sink with plant dam overlay is simulated with CFD software FLUENT,and the free surface is tracked with VOF method,the plant dam overlay districts is simplified with many bores area method,and the infiltration rate is determined with the pressure difference of before or after bores area.And the simulation velocity magnitude are compared with the measured data.

关 键 词：植物坝 Fluent软件 数值模拟 

分 类 号：TV61[水利工程—水利水电工程]