Development and Validation of Coolant Temperature and Cooling Air Flow CFD Simulations at Volvo Cars 2004-01-0051
This paper describes the development of a robust and accurate method to model one-phase heat exchangers in complete vehicle air flow simulations along with a comprehensive comparison of EFD and CFD results.
The comparison shows that the inlet radiator coolant temperatures obtained with CFD were within ±4°C of the experimental data with a trend in the differences being dependent on the car speed. The relative differences in cooling air mass flow rates increase with increasing car speed, with CFD values generally higher than EFD.
From the investigation, the conclusion is that the methodology and modeling technique presented offer an accurate tool for concept and system solutions on the front end design, cooling package and fan. Care must be taken in order to provide the best possible boundary conditions paying particular attention to the heat losses in the engine, performance data for the radiator and fan characteristics. With accurate boundary conditions, the method can be used for virtual sign-off but should be followed by experimental testing and optimization of the cooling system in later phases in car programs.
Citation: Jerhamre, A. and Jönson, A., "Development and Validation of Coolant Temperature and Cooling Air Flow CFD Simulations at Volvo Cars," SAE Technical Paper 2004-01-0051, 2004, https://doi.org/10.4271/2004-01-0051. Download Citation
Author(s):
Anders Jerhamre, Anders Jönson
Affiliated:
Volvo Car Corporation
Pages: 14
Event:
SAE 2004 World Congress & Exhibition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Heat Exchangers and Their Simulation, Thermal Management, and Fundamental Advances in Thermal and Fluid Sciences-SP-1818
Related Topics:
Computational fluid dynamics
Vehicle front ends
Heat exchangers
Radiators
Fans
Coolants
Simulation and modeling
Optimization
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