Some passenger cars with sunroofs open at tilted positions experience reverse flows into cabin rooms and wind noises much louder than in other cars. In this study, flows around an open tilted sunroof are numerically studied with varying body leakage. The effects of body leakage on ventilation and wind noise of a sunroof are examined, in particular. Furthermore, flow visualization, pressure and wind noise measured from the wind tunnel and road tests are presented. The results show that too small a body leakage results in poor ventilation performance and generates high wind noises around a sunroof. It is therefore very important to secure an adequate body leakage from the early design stage to achieve better performance of a sunroof as well as passengers' thermal comfort.
Effects of body leakage on ventilation and wind noise around a sunroof
2002-05-01
9 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
sunroof , ventilation , CFD , body leakage , wind noise
Effects of body leakage on ventilation and wind noise around a sunroof
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