A COMPUTATIONAL STUDY OF AERODYNAMIC NOISE ALLEVIATION ON A GENERIC CAR MODEL

Authors

  • Dung Hoang Thi Kim Department of Aeronautical and Space Engineering, School of Transportation Engineering, Hanoi University of Science and Technology
  • Khanh Nguyen Phu Department of Aeronautical and Space Engineering, School of Transportation Engineering, Hanoi University of Science and Technology

DOI:

https://doi.org/10.11113/aej.v6.15480

Keywords:

Genetic algorithm, Image compression, Image quality evaluation, Medical ultrasonic echo image, Wavelet transform

Abstract

The aerodynamic noise is referred to the noise generated by unsteady flow, which the turbulent flow is connected to the noise sources. In this paper, the aerodynamic noise on a generic car was carried out by using numerical method. First, the turbulent flow on and around the car, when the car moved at velocity 100 km/h, was found out by using CFD method in ANSSYS FLUENT software. Then, Fast Fourier Transform tools in ANSYS FLUENT software was applied to estimate the sound pressure level from the fluctuation of pressure on and around the car. With the aim of alleviating the aerodynamic noise on the cars, four different car shapes were studied. The results remarked that the worse car shape had, the more complex turbulent pressure was found and the higher aerodynamic noise was found as well.

Downloads

Published

2015-01-30

Issue

Vol. 6 No. 2 (2016): December 2016 Part A

Section

Mechanical and Manufacturing Engineering

How to Cite

A COMPUTATIONAL STUDY OF AERODYNAMIC NOISE ALLEVIATION ON A GENERIC CAR MODEL. (2015). ASEAN Engineering Journal, 6(2), 14-21. https://doi.org/10.11113/aej.v6.15480