摘要
本文采用STAR CCM+中三种不同网格离散化数据处理对通道底部障碍物稳定气流的动力学仿真分析,以通道底部障碍物为研究对象,结合流体速度分布流线图、壁面y+分布图、单元线积分卷积速度图以及x y图等,采用CFD数值模拟方法分析了三种单元网格的数据结果.结果表明:六面体网格比四面体网格和切割体网格更高的网格精度和网格质量.研究结果对渠流底部障碍物液相特征优化设计提供了依据,可供工程实际检算和设计参考,能够对大型河道障碍物危害治理提供实践指导作用.
This paper uses three different grid discretization data processing in STAR CCM+to analyze the dynamics simulation analysis of the stable airflow of the obstacles at the bottom of the channel,taking the obstacles at the bottom of the channel as the research object,combining the fluid velocity distribution streamline diagram,the wall y+distribution diagram,Cell line integral convolution speed graph and x y graph,etc.,using CFD numerical simulation method to analyze the data results of three cell grids.The results show that the hexahedral grid has higher grid accuracy than the tetrahedral grid and the cut volume grid.and mesh quality.the results of the optimization of channel flow characteristics of the liquid at the bottom of obstacles designed to provide the basis for engineering calculations and actual detection reference design,can harm the governance of large river obstructions to provide practical guidance.
作者
陈文莉
翟朝凯
李万祥
CHEN Wen-li;ZHAI Chao-kai;LI Wan-xiang(School of Mechanical and Electrical Engineering,Lanzhou Jiaotong University,Lanzhou 730070,China)
出处
《兰州交通大学学报》
CAS
2021年第4期95-101,共7页
Journal of Lanzhou Jiaotong University
