欢迎访问《汽车安全与节能学报》，
汽车安全与节能学报

JASE ›› 2016, Vol. 07 ›› Issue (01): 115-122.DOI: 10.3969/j.issn.1674-8484.2016.01.015

• 汽车节能与环保 • 上一篇    

基于CFD 的汽车发动机舱热管理及优化

谢 暴１，陶其铭2   

  1. 1. 安徽职业技术学院 机械工程系，合肥 230011，中国；2．江淮汽车股份有限公司，合肥 230022，中国
  • 收稿日期:2016-03-21 出版日期:2016-03-25 发布日期:2016-04-05
  • 作者简介:谢暴(1979—），男( 汉），安徽，副教授。E-mail: xiebaomail@126.com
  • 基金资助:

    安徽省高等学校省级优秀青年人才基金重点项目(2013SQRL123ZD）；安徽省高校优秀青年人才支持计划项目(168）

Thermal management and optimization of automobile cabin based on CFD

XIE Bao 1, TAO Qiming 2   

  1. 1. Department of Mechanical Engineering, Anhui Vocational and Technical College, Hefei 230011, China; 2. Anhui Jianghuai Automobile Co. Ltd, Hefei 230022, China
  • Received:2016-03-21 Online:2016-03-25 Published:2016-04-05

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摘要：

为了研究汽车发动机舱热管理，设计出与整车开发流程相匹配的发动机舱热管理工作的模拟
分析流程。基于“计算流体力学”CFD 软件中的 STAR-CCM+，分析了某车型发动机舱的冷流场，
提出其前端进气格栅的优化方案。该优化方案使流经散热器与冷凝器的风量分别提升7.0% 和9.6%。
获得了优化的发动机舱的温度分布云图及热平衡温度。针对风险部件进行舱内热害仿真分析，得到目
标监测点温度满足许用温度要求。水温试验模拟仿真分析中的整车热平衡，仿真精度≥ 85%，舱内
热害仿真精度≥ 95%。结果表明：应用该流程具有较高的计算效率和可靠性。

关键词: 汽车发动机舱, 热害, 热管理, CFD 软件, 冷流场, 热平衡

Abstract:

A simulation analysis process of nacelle thermal management was designed to investigate the
thermal management in cabin of a developing automobile considering flow match. An optimization scheme of
the front air intake grille was made by the nacelle cold flow field analysis to a model automobile based on the
STAR-CCM+ of the CFD (Computational Fluid Dynamics) software. The optimal scheme increased air volume
by 7.0% for radiator and by 9.6% for condenser. The thermal equilibrium temperatures and the temperature
distributions in the cloud for the optimal scheme were obtained to analyze the thermal pollution in an automobile
cabin. The target temperature for risk parts was obtained by cabin thermal damage simulation to monitor the
satisfy requirement of allowable temperature. The thermal equilibrium simulation results for an automobile were
verified by water experiments with an accuracy of 85% or higher. The cabin thermal damage has an accuracy of
95% or more. Therefore, the design process has a high computing efficiency and a high reliability.

Key words: automobile cabin, thermal pollution, thermal management, software CFD (Computational Fluid Dynamics), cold flow field, heat balance