Aero Acoustics Analysis of Car’s ORVM

Journal Name:

Publication Year:

Abstract (2. Language): 
The air stream induced aerodynamic noise generation at the outside rear view mirror at high speeds could make discomfort for the driver and the passenger in a car. This is due to poor aerodynamic characteristics of the ORVM's design. Designing a new ORVM with low noise generation could be a complicated process since it requires the design to be less noise generating and should not sacrifice the aerodynamic stability of the component. The objective of this study is to perform a comparative numerical study on aero acoustic characteristics of car outside rear view mirror (ORVM). A simple ORVM geometry of existing design has been modeled and analyzed with and without indicator using ANSYS-Fluent.



[1] Yiping Wang, Zhengqi Gu, Weiping Li and Xiaohui Lin, “Evaluation of Aerodynamic Noise Generation by a Generic Side Mirror”, World Academy of Science, Engineering and Technology, Vol:4 2010-01-23.
[2] Thorsten Grahs and CarstenOthmer, “Evaluation Of Aerodynamic Noise Generation: Parameter Study Of A Generic Side Mirror Evaluating The Aero Acoustic Source Strength”, European Conference On Computational Fluid Dynamics 2006.
International Journal of Science and Engineering Investigations, Volume 4, Issue 38, March 2015 37
www.IJSEI.com Paper ID: 43815-07
ISSN: 2251-8843
[3] Bipin Lokhande, Sandeep Sovani and Jieyong Xu, “Computational AeroAcoustic Analysis Of A Generic Side View Mirror, SAE Paper 2003-01-1698 (2003).
[4] Jonas Ask and Lars Davidson., “The Sub-Critical Flow Past a Generic Side Mirror and its Impact On Sound Generation and Propagation”, 12th AIAA/CEAS Aeroacoustics Conference. Cambridge, Massachusetts, 8-10 May 2006 AIAA 2006-2558.
[5] Chien-Hsiung Tsai, Lung-Ming Fu, Chang-Hsien Tai, Yen-Loung Huang, Jik-Chang Leong, “Computational Aero-Acoustic Analysis Of A Passenger Car With A Rear Spoiler”, Applied Mathematical Modeling 33(2009) 3661-3673.
[6] J.R. Callister, A.R. George, “Wind Noise, Aerodynamics Of Road Vehicles, In: W.H. Hucho (Ed.), SAE International, Warrendale, PA, 1998.
[7] K. Ono, R. Himeno, T. Fukushima, “Prediction of Wind Noise Radiated From Passenger cars and Its Evaluvation Based on Auralization”, Journal Of Wind Engineering and Industrial Aerodynamics 81 (1999) 403-419.
[8] J.E. Ffowcs Williams, D.L. Hawkins, “Sound Generation by Turbulence and Surfaces in Arbitrary Motion”, Proceedings of the Royal Society of London A264 (1969)321-342.
[9] M.J. Lighthill, “On Sound Generated Aerodynamically, I General Theory”, Proc. Roy. Soc., A 211, 564-587, (1952).

Thank you for copying data from http://www.arastirmax.com