Research on Engine Compartment Thermal Management Based on STAR-CCM+ software
2022-01-0209
03/29/2022
- Event
- Content
- Nowadays, energy conservation and emission reduction have raised the awareness of more and more people. The heat dissipation of the engine compartment is an important evaluation index for automobile thermal management, which directly affects the vehicle's power, economy, durability and riding comfort. In this paper, aiming at the problem of unsatisfactory thermal management effect of a certain passenger car engine compartment, the systematic model of engine compartment thermal management is used to carry out research and program optimization. Based on the STAR-CCM+ software, we discuss the distribution law of the speed field and pressure of the engine compartment, and the influence of the front frame baffle on the flow field. The longitudinal position of the oil cooler was investigated for the cooling module, and it was found that the block position of the oil cooler has a certain degree of influence on the heat dissipation of the radiator. In the actual vehicle design, the up-down correspondence between the water inlet and outlet can be changed to improve the heat dissipation. At the engine compartment level, the role of the deflector was investigated. Its optimization of the intake air flow of the radiator and intercooler was above 10%. The role of the longitudinal position of the oil cooler in the engine compartment was studied to change the oil cooling. To a certain extent, the position of the radiator can optimize the air intake of the heat dissipation module, and the deflection of the cooling module by a certain angle can improve the angle between the temperature and the velocity field, which increases the cooling capacity of the cooling module. The deviation between the fan and the intercooler is 0.08m, which not only reduces the center temperature of the fan, but also increases the flow rate of the intercooler.
- Citation
- Zheng, T., "Research on Engine Compartment Thermal Management Based on STAR-CCM+ software," SAE Technical Paper 2022-01-0209, 2022, .