发动机舱温度场耦合仿真方法研究
Research on the Coupling Simulation Method of Engine Room Temperature Field
DOI: 10.12677/MET.2020.92014, PDF,   
作者: 王梓宇*, 彭宇明, 吴有彬：西南交通大学，四川 成都；罗 振：柳州龙杰汽车配件有限公司，广西 柳州
关键词: 发动机舱；耦合仿真；对流换热系数；台架试验；Engine Room； Coupling Simulation； Convective Heat Transfer Coefficient； Bench Test
摘要: 汽车发动机舱温度场的研究对于机舱热管理分析有着重要的作用。对汽车发动机舱结构进行适当简化，设计机舱温度场测试模拟实验台架，并针对发动机排气歧管隔热罩以及机舱内热流场的分布特性，进行强迫对流工况下的实验测试，建立3D-3D耦合数值仿真模型，采用实验数据修正法对机舱内对流换热系数进行修正。通过对比模拟台架实验与仿真结果，验证了采用耦合仿真计算模型以及实验数据修正法修正对流换热系数的可行性，提高了仿真计算的效率和准确性。
Abstract: The study of the temperature field of the automobile engine compartment plays an important role in the analysis of cabin thermal management. Simplify the structure of the automobile engine compartment appropriately, design a simulation test bench for the temperature field test of the engine compartment, and perform an experimental test under forced convection conditions for the distribution characteristics of the engine exhaust manifold heat shield and the heat flow field in the engine compartment to establish 3D-3D coupled numerical simulation model, using experimental data correction method to modify the convective heat transfer coefficient in the cabin. By comparing the simulation bench experiments with the simulation results, the feasibility of using the coupled simulation calculation model and the experimental data correction method to modify the convective heat transfer coefficient is verified, which improves the efficiency and accuracy of the simulation calculation.
文章引用：王梓宇, 彭宇明, 吴有彬, 罗振. 发动机舱温度场耦合仿真方法研究[J]. 机械工程与技术, 2020, 9(2): 131-142. https://doi.org/10.12677/MET.2020.92014

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