【作者】 周兆明； 万夫； 练章华；

【Author】 (ZHouZHaoMing1 WanFu1 LianZHangHua2)(1,Safety Environmental Quality Supervision Detection Institute of CNPC Chuanqing Drilling Engineering Co.Ltd,Zhongshan Road,Guanghan City,Sichuan Province,P.R.China 618300.2,State Key Laboratory of Oil & Gas Reservoir Geology & Exploitation,Southwest Petroleum University)

【机构】 川庆钻探工程公司安全环保质量监督检测研究院； 西南石油大学；

【摘要】 采用大涡模拟方法对污染气体绕方体扩散的风洞试验进行了数值模拟,使用分割方法细致的划分了有限体积模型网格,采用UDF编写风速的梯度函数作为入口边界条件。模拟得到的流场与污染气体浓度场都与风洞试验数据较为吻合,并且数值计算能获得实验中难以观察到的较小的涡旋,大涡模拟污染气体扩散可以获得更为精细的结果。更多还原

【Abstract】 Using large eddy simulation simulate the gaseous pollutant diffusion of wind tunnel tests.Using of segmentation and detailed classification mesh the finite element model,Using the UDF write the gradient function of velocity as entry boundary conditions.The flow field and pollutant concentration field are more consistent with the wind tunnel test.Using large eddy simulation can be observe the smaller vortex,the gaseous pollutant diffusion of the large eddy simulation can obtain more detailed and true results.更多还原