空气动力学学报2001，Vol.19Issue(1)：91-96,6.
用预处理方法数值模拟街区峡谷内的污染物扩散
Preconditi oning for numerical simulation ofpollutant dispersion in street canyon
摘要
Abstract
Numerical simulation is made to calculate the turbulent flowfieldand pollutant dispersion in street canyon by solving the 2 -D compressible Navier-Stokes equations and k～ε model equations and tr ansportation-dispersion equation. The LU-SGS implicit method and JST scheme are used to solve the NS equations that have been preconditioned so as to accelera te the convergence rates. The test shows that the preconditioning speeds the con vergence rates and some useful conclusions about pollutant dispersion in street canyon are drawn.关键词
预处理方法/街区峡谷/污染 物扩散/低速/k～ε湍流模型分类
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廖守亿,徐万武,王承尧..用预处理方法数值模拟街区峡谷内的污染物扩散[J].空气动力学学报,2001,19(1):91-96,6.基金项目
中国科学院“九五”重点项目专题研究 （）
