Numerical Simulation of Fluid Flow around Porous Fences and Highways
An initial study to develop a numerical tool by using computational fluid dynamics (CFD) methods for investigating the air flow characteristics around the porous fences and highway was completed. In order to satisfy the requirements for the building and construction of highway in the desert areas, a detailed CFD model was built and a Reynolds-averaged NavierStokes (RANS) simulation was performed by using a commercial package ANSYS. By comparing with available test data, the RANS simulations are substantially consistent with existing experimental results. The flow distribution function, height of porous fences and porosity and number of openings significantly affect the air flow in the vicinity of the porous fence. Also,the wake zone increases with increasing height of the roadbed and the grade of side slope.Thus, the present framework is useful to investigate the general airflow pattern in and around other engineering constructions.
Porous fence Highway construction Flow distribution function Numerical simulation
Bo Tianli Wu Shengzhi
Key Laboratory of Mechanics on Western Disaster and Environment of Ministry of Education, China Dcpartmcnt of Mechanics, College of Civil Engineering and Mcchanics, Lanzhou University, Lanzhou 730
国际会议
北京
英文
113-122
2006-10-14（万方平台首次上网日期，不代表论文的发表时间）