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http://dx.doi.org/10.5050/KSNVE.2014.24.3.189

PowerFLOW Simulation of the Hyundai Simple Model for Sunroof Buffeting  

Choi, Eui-Sung (EXA Korea Ins.)
Cyr, Stephane (EXA Corp.)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.24, no.3, 2014 , pp. 189-197 More about this Journal
Abstract
A simplified model in the shape of a wedge box with an opening on the roof was used to generate buffeting conditions at HMC. These measurements performed in controlled conditions are intended to validate the ability of CFD tools to predict buffeting. The results obtained by PowerFLOW are presented in this paper for buffeting and for the boundary layer development on the roof of the model when the roof opening is closed. The flow mechanisms that explain the behavior of the experimental sound pressure level(SPL) curve are described, and an improved setup is used to reproduce the flow structures that lead to the measured SPL.
Keywords
PowerFLOW; Buffeting; Helmholtz Resonator; Vortex Shedding Frequency;
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