摘要
本文通过对红旗ＣＡ７４４轿车的空气动力特性试验研究，认识到在满足轿车功能和适应相关法规的前提下如何降低轿车外部气动阻力及内流阻力的几个问题。通过试验研究并采用合理的气动布局，使该车型气动阻力系数从０．４２降至０．２５，升力系数从０．３７４降至－０．１２７。本研究为提高国产轿车设计水平提供了重要依据。
The report introduces the testing research into the aerodynamic characteristics of the Hongqi CA774 homemade car.From it we can know that:on the premises of satisfying the functions of the car and adapting the relevant laws and regulation,how to reduce the outer drag and the insideflow drag of the car.Through the testing research and using the reasonable aerodynamic layout,this type of the car’s drag coefficient can be reduced from 0.42 to 0.25,and the lift coefficient is reduced from 0.374 to -0.127.So the research provides an important basis for raising the designing level of the car made in our country.
出处
《空气动力学学报》
CSCD
北大核心
1998年第2期147-153,共7页
Acta Aerodynamica Sinica
关键词
轿车减阻
轿车改型
气动力持性
风洞试验
drag reduction of car
car modification
the car′s aerodynamic characteristics
wind tunnel testing
