小型乘用车内空调气流组织的数值模拟研究  

Study on Air Distribution Simulation of Air Conditioning in Small Passenger Cars

作　　者：宫宇 Gong Yu(Tongji University,School of Automotive Studies,Shanghai 200092)

机构地区：[1]同济大学汽车学院,上海200092

出　　处：《内燃机与配件》2023年第2期23-27,共5页Internal Combustion Engine & Parts

摘　　要：车内空调的热舒适性随着汽车在人们生活中愈加普及而受到重视,车内气流组织直接影响了车内温湿度和气流速度场的分布从而影响舒适度。本文以小型乘用车内气流组织为研究对象,通过数值模拟的方式对车内气流组织进行研究,提出了顶送风及顶送风加侧下送风的气流组织方式,详细分析了在不同送风模式下车内的温度场、速度场以及PMV及PPD的变化。数值模拟计算结果显示,顶送风及顶送风加侧下送风的气流组织方式对比当前普遍采用的侧下送风方式,能使驾乘区域速度场及温度场更优,从而提升驾乘人员的舒适度。This paper takes the airflow distribution in the small passenger car as the research object,and analyzes in detail the changes of temperature field,velocity field,and corresponding PMV and PPD as thermal comfort evaluation indexes caused by different airflow distribution forms in the car.Based on computational fluid mechanics,the air flow field in the small passenger car is simulated and analyzed by using numerical simulation software.In the paper,the top air supply and the airflow distribution mode of top air supply plus side air supply were proposed.As a comparison,four typical working conditions are simulated,including the traditional air supply mode and the newly proposed air supply mode.The simulation results show that the airflow distribution mode of top air supply is better than the traditional air supply mode,with better velocity and temperature fields,stronger comfort.

关 键 词：小型乘用车 湍流模型 气流组织 数值模拟 

分 类 号：U46[机械工程—车辆工程]