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Accuracy in Flow Simulations of Climate Control - Part 2: The Passenger Compartment
Technical Paper
1999-01-1201
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Computational fluid dynamics has been used to study the flow pattern in a Volvo S80 passenger compartment. The main purpose of this work is to secure a method for future use of CFD in developing climate control systems in cars. The effects of mesh resolution and mesh size were studied by varying the number of cells from 1 million to approximately 5 million. It was found that at least 2 million cells are needed to approach a mesh size independent solution. The other focus of this study was the outlet boundary conditions. Since a passenger compartment is not air tight, outlets were assumed to be around doors, through the floor, through the backseat, as well as the evacuation at the rear of the passenger compartment. It can be seen that the solution is only sensitive to drastic changes in the leakage.
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Citation
Chronéer, Z. and Axelsson, N., "Accuracy in Flow Simulations of Climate Control - Part 2: The Passenger Compartment," SAE Technical Paper 1999-01-1201, 1999, https://doi.org/10.4271/1999-01-1201.Data Sets - Support Documents
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References
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- Currie, J. et al. Evaluation of the HVAC system of passenger cars and prediction of the microclimate in the passenger compartment by application of numerical flow analysis SAE Paper 971788 1997
- Enwald, H. Axelsson, N. Accuracy in flow simulations of climate control - Part 1: The air distribution system SAE Paper 1999
- BETA CAE systems USA Inc. User's guide for ANSA 1997
- Fluent Inc. User's guide for FLUENT/UNS & RAMPANT April 1996