Calculation of Noise Reduction of Internal-Combustion Engine Air-Cleaner Based On CFD

PDF(1602 KB)

Journal of Vibration and Shock ›› 2013, Vol. 32 ›› Issue (7) : 141-145.

论文

Calculation of Noise Reduction of Internal-Combustion Engine Air-Cleaner Based On CFD

LIU Lian-yun，HAO Zhi-yong，ZHENG Xu

Author information +

History +

Abstract

A CFD approach was proposed to calculate the noise reduction of an air-cleaner for internal-combustion engine in the condition without mean flow. In the approach, a correction pipe was modeled to represent the real inlet boundary of the air-cleaner regarding the duct acoustic characteristics. The model and the approach were validated by comparing the calculated noise reduction with experimental data. Further, the noise reduction in the condition of mean flow was calculated. It was suggested that the mean flow with Mach number of 0.08 has no significant effect on noise reduction compared with that in the condition without mean flow. In addition the filter was modeled as porous zone, and the noise reduction of the cleaner with filter was calculated in the conditions with and without mean flow. The features of CFD model of the filter were investigated.

Key words

air-cleaner / noise reduction / CFD approach / correction pipe / filter

Cite this article

EndNote

Ris (Procite)

Bibtex

Download Citations

LIU Lian-yun;HAO Zhi-yong;ZHENG Xu. Calculation of Noise Reduction of Internal-Combustion Engine Air-Cleaner Based On CFD[J]. Journal of Vibration and Shock, 2013, 32(7): 141-145