乘用车暖通空调风道气动噪声模拟研究  

A Study on Aero-acoustic Simulation for Automotive HVAC Ducts

作　　者：邓晓龙[1] 陈剑[1] 顾镭 沈磊 

机构地区：[1]合肥工业大学机械工程博士后流动站,合肥230009 [2]奇瑞汽车有限公司博士后工作站,芜湖241009

出　　处：《汽车工程》2006年第12期1074-1077,共4页Automotive Engineering

基　　金：国家自然科学基金项目(50575063)资助。

摘　　要：采用大涡模拟模型(LES)计算了某汽车暖通空调风道的瞬态流场,然后应用L ighth ill-Curle声学理论,采用FW-H声学模型,预测了其噪声特性。与试验结果对比表明,用CFD方法预测暖通空调系统管道气动噪声有一定精度,分析结果可用于改进空调系统的气动噪声性能。The transient flow field in the ducts of the heating-ventilation-air conditioning （HVAC） system of a vehicle is calculated based on large eddy simulation （LES） model. Then the noise characteristic is predicted using FW-H model with Lighthill-Curle acoustic theory. The simulation results agree well with that of tests, which shows that using CFD technique to predict aerodynamic noise in HVAV ducts has reasonable accuracy, and the results of analysis is conducive to the improvement of aero-acoustic performance of automotive HVAC system.

关 键 词：乘用车 暖通空调 气动噪声 

分 类 号：U463.851[机械工程—车辆工程]