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Simulation of the Thermal Environment Surrounding an Underbody Fuel Tank in a Passenger Vehicle Using Orthogonally Structured and Body-Fitted Unstructured CFD Codes in Series
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Abstract
Computational fluid dynamics (CFD) simulations of the thermal environment surrounding an underbody fuel tank in a passenger vehicle are presented. In this study, an orthogonally structured full vehicle CFD model was used to provide the necessary boundary conditions for a body-fitted unstructured CFD model of the underbody region containing the fuel tank surface. This method provides a timely approach to performing this type of simulation in support of rapidly changing vehicle development programs. The results for both idle and 30 mph conditions indicate that the major source of external fuel tank heating is the heat convected to the fuel tank surface from the underhood region of the vehicle. Comparisons of simulation results with test data from a similar vehicle shows a good correlation between the two.
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Citation
Hsu, I. and Schwartz, W., "Simulation of the Thermal Environment Surrounding an Underbody Fuel Tank in a Passenger Vehicle Using Orthogonally Structured and Body-Fitted Unstructured CFD Codes in Series," SAE Technical Paper 950616, 1995, https://doi.org/10.4271/950616.Also In
References
- Kawachiya, S. et al “Development of a Method for Controlling Fuel Vapor Generation from Automotive Fuel Tanks.” SAE Paper 931101 1993
- Caltrider, J.L. et al “Impact of Computer Aided Engineering on Ford Light Truck Cooling Design and Development Processes” SAE Paper 931104 1993
- STAR-CD User's Manual Computational Dynamics Limited 1992
- FAST User Guide - Beta 2.1 NASA Ames Research Center: NAS Division, RND Branch 1992