Air entering a NASCAR stock car travels through an air filter enclosed in an “airbox” before being mixed with fuel. To maximize the mass of air/fuel mixture delivered to the cylinders, it is desired to minimize airflow restrictions. This paper presents a preliminary model to predict pressure drop and airflow across an air filter in a simplified geometry. The model includes experimental measurements and numerical simulations using a three-dimensional finite-volume package. The simplified geometry is a 1.52-m long flow channel with 12.7 cm by 7.97 cm cross-section. Measurements of pressure drop versus air velocity were made for separate and combined elements of the filter. A curve fit to the data is used to calculate coefficients for a porous-jump boundary condition used to model flow through porous media. Numerical simulations were run using this model for each filter element in the simplified geometry to verify that measured and calculated pressure drops agreed. Finally, flow visualization techniques were used to reveal streaklines in the flow. Good agreement was found between calculated streamlines and experimental observations. Thus, the porous jump boundary condition is a valid model for the filter material. Future work will include three-dimensional, transient numerical simulations of airflow within the airbox.
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ASME 2006 2nd Joint U.S.-European Fluids Engineering Summer Meeting Collocated With the 14th International Conference on Nuclear Engineering
July 17–20, 2006
Miami, Florida, USA
Conference Sponsors:
- Fluids Engineering Division
ISBN:
0-7918-4750-0
PROCEEDINGS PAPER
Modeling Flow Across a Race Car Air Filter
Robert Binns,
Robert Binns
California Polytechnic State University, San Luis Obispo, CA
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Kim A. Shollenberger
Kim A. Shollenberger
California Polytechnic State University, San Luis Obispo, CA
Search for other works by this author on:
Robert Binns
California Polytechnic State University, San Luis Obispo, CA
Kim A. Shollenberger
California Polytechnic State University, San Luis Obispo, CA
Paper No:
FEDSM2006-98260, pp. 305-313; 9 pages
Published Online:
September 5, 2008
Citation
Binns, R, & Shollenberger, KA. "Modeling Flow Across a Race Car Air Filter." Proceedings of the ASME 2006 2nd Joint U.S.-European Fluids Engineering Summer Meeting Collocated With the 14th International Conference on Nuclear Engineering. Volume 1: Symposia, Parts A and B. Miami, Florida, USA. July 17–20, 2006. pp. 305-313. ASME. https://doi.org/10.1115/FEDSM2006-98260
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