中南大学学报（自然科学版）2017，Vol.48Issue(10)：2649-2656,8.DOI:10.11817/j.issn.1672-7207.2017.10.013
基于集成方法的汽车除霜除雾风道改进
Improvement of auto defrosting and demisting air duct based on integrated method
摘要
Abstract
In order to solve the present problem that the auto defrosting and demisting performance is generally not that good, the RNG simulation method was used to improve the performance of the front windscreen defrosting and demisting. Firstly, the accuracy of the simulation method was verified through the experiments;Secondly, four guide plates were added in the defrosting and demisting duct, and the structure sizes of the six guide plates were used as the optimization variables while the Nusselt numbers ofA,A′ andB zones of the windshield were used as the optimization goal after the defrosting and demisting performance of the initial model was analyzed;meanwhile, a solution that combined computational fluid dynamics and optimization algorithm was proposed for the purpose of improving the efficiency of optimization,which could improve and optimize the defrosting and demisting duct system, thus obtaining the optimal parameters; at last, the improved air dust system was applied to analyze the defrosting and demisting performance. The results show that the modified air ducts distribute more uniformly, the Nusselt numbers inA andB zones are increased by 13.2% and 7.7%,respectively, and the defrosting and demisting performance is improved obviously under the circumstances of not increasing the air output of the air condition.关键词
除霜除雾/RNG模型/导流板/集成优化Key words
defrosting and demisting/RNG model/deflector/integrated optimization分类
交通工程引用本文复制引用
谷正气,文琪,汤柱良,陈阵,黄泰明..基于集成方法的汽车除霜除雾风道改进[J].中南大学学报（自然科学版）,2017,48(10):2649-2656,8.基金项目
长沙市科技计划重点项目(k1501011-11) （k1501011-11）
中央财政支持地方高校专项资金资助项目(0420036017) （0420036017）
交通运输部新世纪十百千人才培养项目(20120222) （20120222）
湖南大学汽车车身先进设计与制造国家重点实验室自主课题项目(734215002) (Project (k1501011-11) supported by Key Project in the Science and Technology Program of Changsha （734215002）
Project (0420036017) supported by Innovation Team of Ministry of Finance of China （0420036017）
Project (20120222) supported by Ministry of Transport for New Century 1000 Talent Training （20120222）
Project (734215002) supported by Independent Subject of State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body) （734215002）
