同济大学学报（自然科学版）2017，Vol.45Issue(9)：1377-1382,1389,7.DOI:10.11908/j.issn.0253-374x.2017.09.018
车尾水平收缩气动减阻的规律及机理
Regulation and Mechanism of Aerodynamic Drag Reduction by Horizontal Tail Contraction
摘要
Abstract
Based on wind tunnel test and numerical simulation,the regulation of horizontal tail contraction on aerodynamic drag reduction was studied.The results indicate that tail contraction raises pressure level of tail surface and reduces aerodynamic drag.On the basis of the reliable numerical simulation results,the changes of wake structure were studied.The research indicates that the contraction provides additional kinetic energy for the dead zone behind tail,which suppresses formation and development of Wailing vortex pair,therefore,the flow energy loss of wake and aerodynamic drag reduces.关键词
关气动减阻/水平收缩/流动机理Key words
aerodynamic drag reducing/horizontal tail contraction/flow mechanism分类
数理科学引用本文复制引用
朱晖,郑子浩,杨志刚..车尾水平收缩气动减阻的规律及机理[J].同济大学学报（自然科学版）,2017,45(9):1377-1382,1389,7.基金项目
上海市地面交通工具风洞专业技术服务平台(16DZ2290400) （16DZ2290400）
