摘要
利用计算流体力学软件Fluent,用VOF方法追踪自由水面,对有植物坝覆盖的水槽二维两相流场进行数值模拟,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孔隙率来确定渗透率。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比对,研究表明两者吻合较好。
The 2D two-phase flow fields in a flume covered by a vegetation dam was simulated by use of the computational fluid dynamics software FLUENT. The volume of fluid （VOF） method was introduced to tmee the free surface. The porous medium domain was employed to simulate the coverage area of the vegetation dam, and its permeability was determined based on the strengths before and after the porous media and the void ratios. A comparison between the current velocities calculated by numerical simulation and those observed by model tests shows they are in good agreement.
出处
《水利水电科技进展》
CSCD
北大核心
2010年第2期32-35,共4页
Advances in Science and Technology of Water Resources
基金
国家自然科学基金(50269003)
关键词
植物坝
多孔介质
数值模拟
vegetation dam
porous medium
numerical simulation
