The Effect of Free Stream Turbulence on A-pillar Airflow

2009-01-0003

04/20/2009

Event
SAE World Congress & Exhibition
Authors Abstract
Content
Various studies have shown that the level of wind noise experienced inside cars on the road in unsteady conditions can be substantially different from that measured in wind tunnel tests conducted using a low turbulence facility. In this paper a simple geometric body representing the cabin of a passenger car has been used to investigate the effects of free stream turbulence, (FST), on the A-pillar vortex flowfield and the side glass pressure distribution. Beneath the A-pillar vortex, both mean and dynamic pressures are increased by FST. The unsteady pressure can be associated with wind noise and the flow visualization shows the peak unsteadiness is related to the separation of the secondary vortex.
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DOI
https://doi.org/10.4271/2009-01-0003
Pages
6
Citation
Howell, J., Fuller, J., and Passmore, M., "The Effect of Free Stream Turbulence on A-pillar Airflow," SAE Technical Paper 2009-01-0003, 2009, https://doi.org/10.4271/2009-01-0003.
Additional Details
Publisher
Published
Apr 20, 2009
Product Code
2009-01-0003
Content Type
Technical Paper
Language
English