In this extended abstract physical problem definition and present work-in-progress results for computer simulations of coupled internal and external flows in the compartment of a generic passenger four-seat vehicle (Chrysler benchmark configuration) are described. To perform the computations, the CFD-ACE+, multidisciplinary CFD and heat transfer software is used. The vehicle speed, percentage of open window area and its distribution between two sides determine the overall impact of the external flow. The impact of the ventilation system is accounted by changes in the inlet flow velocities of the HVAC (Heating-Ventilation-Air-Conditioning) system. The final paper will be presented at the conference. Five main circulation patterns inside the passenger compartment are observed: 1. One zone of altitudinal circulation in the horizontal plane. 2. Two zones of altitudinal circulations in the horizontal plane. 3. Two zones of altitudinal circulations in the horizontal plane and one longitudinal circulation in the vertical plane. 4. One zone of altitudinal circulation in the horizontal plane and one zone of longitudinal circulation in the vertical plane. 5. Circulation predominantly in vertical plane.
Analysis of coupled internal - external flows and ventilation in a generic passenger car
Analyse gekoppelter Innen- und Außenströmungen sowie der Lüftung in einem generischen Personenkraftwagen
2001
5 Seiten, 6 Bilder, 7 Quellen
Aufsatz (Konferenz)
Englisch
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