Thermal-velocity Coupling in Vehicle Thermal System Calculations
Thermal-velocity Coupling in Vehicle Thermal System Calculations
- New search for: Shen, Fred Z.
- New search for: Bozeman, Jeffrey
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- New search for: Shen, Fred Z.
- New search for: Bozeman, Jeffrey
- New search for: Yang, Zhigang
The issue of thermal-velocity coupling is discussed in the context of vehicle thermal system analysis. Temperature variations in the bulk of the fluids caused by the vehicle engine, cooling, and exhaust system lead to variations in the density of the airflow. The density variations impact the velocity field in two ways: by introducing a driving force term explicitly to account for the effect of buoyancy force and by coupling with the other governing equations. The buoyancy force is crucial for buoyancy driven flows such as vehicle under soak condition. The vehicle thermal system analysis based on the coupled approach leads to a 15°C improvement in the prediction of the underhood thermal environment.
Document information
Thermal-velocity Coupling in Vehicle Thermal System Calculations
Sae Technical Papers
SAE 2002 World Congress & Exhibition ; 2002
2002-03-04
Conference paper
English
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