汽车流场及尾部涡系数值模拟  

Numerical Simulation Research of Automotive Flow-field and Trailing Vortices

作　　者：傅立敏[1] 沈俊[1] 王靖宇 

机构地区：[1]吉林工业大学汽车动态模拟国家重点实验室,吉林长春130025

出　　处：《吉林工业大学自然科学学报》2000年第2期6-9,共4页Natural Science Journal of Jilin University of Technology

基　　金：国家自然科学基金资助项目!(19672021)

摘　　要：对红旗ＣＡ７７４轿车进行了数值模拟，得到了整车的流场结构和尾流场的涡系结构。成功地模拟出了气流分离和拖拽涡现象。在数值模拟基础上对流场气流的横、纵向流动状况，尾部涡系结构，气流分离及拖拽涡的形成与发展机理作了详细分析与讨论。通过与试验结果对比，证实了数值模拟结果是正确的。This paper does numerical simulation research of RED-FLAG CA774 and gets the structure of whole outer flow-field and trailing vortices. The authors successfully simulate the appearance of flow separation and towing vortices, and on the basis of numerical simulation, discuss flowing state of vertical and horizontal flow, wake vortices structure and the mechanism of flow separation, formation and development of trailing vortices. The results of numerical simulation, compared with test results, are verified correctly.

关 键 词：数值模拟 尾流结构 CFD 拖拽涡 汽车流场 

分 类 号：U461.1[机械工程—车辆工程]