汽车空调风道性能定量评价与结构优化  

Research on Performance Quantitative Evaluation&Structural Optimization of Vehicle Air-Conditioning Ducts

作　　者：刘水长[1] 潘神功 张勇[1] 刘赫 胡健 田承春 LIU Shuichang;PAN Shengong;ZHANG Yong;LIU He;HU Jian;TIAN Chengchun(College of Mechanical Engineering,Hunan University of Technology,Zhuzhou Hunan 412007,China)

机构地区：[1]湖南工业大学机械工程学院,湖南株洲412007

出　　处：《湖南工业大学学报》2024年第6期63-70,共8页Journal of Hunan University of Technology

基　　金：国家自然科学基金资助项目(52372352);湖南省自然科学基金资助项目(2023JJ50192);湖南省重点研究计划基金资助项目(2022GK2065);湖南省人才托举工程-中青年优秀科技人才培养计划基金资助项目(2023TJ-Z16)

摘　　要：针对汽车空调风道压力损失大、出口风速不均匀、常用的CFD优化仿真方法存在因网格重复划分和几何模型重修而导致的效率低下问题,提出一种速度均匀性系数的定量评价方法,并在气流分离严重的管道位置创建了网格变形参数,形成了基于Isight的Sculptor网格变形和STAR-CCM+技术的集成优化方法,实现了空调风道的自动优化。对比分析结果表明:采用出风口速度均匀性系数和自动优化技术,在各出风口出风量不变的前提下,风道压力损失降低了26%~34%,出风口速度均匀性系数提高了16%~33%,优化效率大幅提升。A quantitative evaluation method for velocity uniformity coefficient has been proposed to address the issues of high pressure loss,uneven outlet wind speed,and low efficiency of commonly used CFD optimization simulation methods in automotive air conditioning ducts.And grid deformation parameters are created at the locations of pipelines with severe airflow separation,thus forming an integrated optimization method based on Isight integrated Sculptor grid deformation and STAR-CCM+technology so as to achieve an automatic optimization of air conditioning ducts.The comparative analysis results show that by using the uniformity coefficient of air outlet velocity and automatic optimization technology,the pressure loss in the air duct is reduced by 26%to 34%,and the uniformity coefficient of air outlet velocity is increased by 16%to 33%,with the optimization efficiency significantly improved and the air outlet airflow remaining unchanged.

关 键 词：空调风道 风速均匀性系数 网格变形 集成优化 

分 类 号：U463.851[机械工程—车辆工程]