Title :
The effects of different rear slant angles and ride heights on aerodynamic lift force
Author :
Song, Xin ; Gu, Zhengqi
Author_Institution :
State Key Lab. of Adv. Design & Manuf. for Vehicle Body, Hunan Univ., Changsha, China
Abstract :
The external flow field of Ahmed model is simulated by Fluent,and is verified with experiments.On that basis,The Ahmed model with different rear slant angles and ride heights are simulated. Then the reasons for the lift force changing are analized,and the flow field behind the Ahmed model of three different rear slant angles are compared with each other. It shows that the results from Realizable * k-ε are more accurate than the others which are compared in this paper. During the rear slant angle changing from 0 degree to 30 degree, the lift force increase linearly with the angle increasing. With the growth of ride heights, the lift force increase exponentially.
Keywords :
aerodynamics; flow simulation; Ahmed flow field model; Fluent simulation; aerodynamic lift force; rear slant angle effect; ride height effect; Aerodynamics; Automotive engineering; Computational modeling; Force; Industries; Land vehicles; Presses; Ahmed model; Realizable k−ε; lift force; rear slant angle; ride height;
Conference_Titel :
Electric Information and Control Engineering (ICEICE), 2011 International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-8036-4
DOI :
10.1109/ICEICE.2011.5776915
