A Simulation on Aerodynamic Noise of an Air-conditioning Duck
The transient flow field is needed in order to predict the aerodynamic noise of an automotive HVAC duck by conventional methods.However,it is time-consuming when are several improved schemes.To solve the problem,schemes with large sound power can be discarded using Broadband Noise Source (BNS) model at first.Then,the best scheme can be found after the transient flow simulation.In this paper,an automotive HVAC duck is used as an example.Firstly BNS is used to predict which scheme is noisier,secondly the aerodynamic noise is computed using Fluent coupled with Sysnoise.At last they come to the same conclusion.The simulation results indicate BNS model can be used to find which scheme is the best without computing the transient flow field.So it can shorten the cycle of developing new products.
computational fluid dynamics (CFD) air-conditioning duck noise control aerodynamic noise
Wenku Shi Jianpeng Yao Suojun Hou Fuxiang Guo Deguang Fang
State Key Laboratory of Aotomobile Dynamic Simulation Jilin university Changchun,China Naniing Iveco Motor Comoanv Ltd Naniing,China
国际会议
太原
英文
778-783
2012-01-13（万方平台首次上网日期，不代表论文的发表时间）