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CFD for Flow Rate and Air Re-Circulation at Vehicle Idle Conditions
Technical Paper
2004-01-0053
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
CFD method for the calculation of flow rate and air re-circulation at vehicle idle conditions is described. A small velocity is added to the ambient airflow in order to improve the numerical stability. The flow rate passing through the heat exchangers is insensitive to the ambient velocity, since the flow rate is largely determined by the fan operation. The air re-circulation, however, is quite sensitive to the ambient air velocity. The ambient velocity of U=-1m/s was found to be the more critical case, and is recommended for the air re-circulation analysis. The CFD analysis can also lead to design modifications improving the air re-circulation.
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Citation
Yang, Z., Bozeman, J., and Shen, F., "CFD for Flow Rate and Air Re-Circulation at Vehicle Idle Conditions," SAE Technical Paper 2004-01-0053, 2004, https://doi.org/10.4271/2004-01-0053.Also In
Heat Exchangers and Their Simulation, Thermal Management, and Fundamental Advances in Thermal and Fluid Sciences
Number: SP-1818; Published: 2004-03-08
Number: SP-1818; Published: 2004-03-08
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