Abstract

A numerical simulation calculation is performed using large eddy simulation method to investigate the characteristics of flow field around vehicle body, analyze the change rules of the velocity and pressure of the three-dimensional flow field around the vehicle body, as well as the frequency domain characteristics of the aerodynamic coefficients in the vehicle body. The results reveal that with the gradually expanding distance from the rear of the vehicle body, the velocity in the flow field around the vehicle body gradually recovers and reaches the incoming flow velocity at 0.9m from the rear of the vehicle body. Within the range of 0∼50HZ, the resistance coefficient and lift coefficient undergo a peak attenuation to about 20%, with a fluctuation of aerodynamic coefficient mainly within the range of 0∼500HZ. The research results are of certain significance and value for analyzing and applying the characteristics of flow field around vehicle body.

Details

Title
A study on characteristics of flow field around vehicle body
Author
Zhao, Ruochen 1 ; Liu, Zhen 2 ; Liu, Yinzhen 1 ; Luo, Xiaobo 1 ; Sun, Yanan 1 

 Engineering Management Department, Inner Mongolia Honder College of Arts and Sciences, Hohhot, Inner Mongolia, 010070, China 
 College of Energy and Power Engineering, Inner Mongolia University of Technology, Hohhot, Inner Mongolia, 010051, China 
Publication year
2021
Publication date
Jun 2021
Publisher
IOP Publishing
ISSN
17551307
e-ISSN
17551315
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2546086399
Copyright
© 2021. This work is published under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.