Numerical Comparison of the Heat Transfer Characteristics in an Automobile Cabin During Heating Period by Using Different Radiation Models

34701

In this study, comparisons of the heat transfer characteristics in an automobile cabin with different radiation models were performed during transient heating period. In numerical simulations, a virtual manikin with real dimensions and physiological shape was added to the model of the automobile cabin to predict the heat interactions between human body and cabin interior surfaces. Radiation heat transfer characteristics among the interior surfaces of the cabin were computed by using two different radiation models. These models are called DO (Discrete ordinate) radiation model and S2S (Surface-to-surface) radiation model. As a result of these computations, we conclude that both Discrete and Surface-to-surface models can be used for calculation of the heat transfer characteristics of the human body in the automobile cabin but these models show difference in terms of computing times. Numerical results were compared to the experimental data and the results of the numerical calculations were in good agreement with the experimental data.

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Automobile cabin , heat transfer characteristics , radiation models , CFD

Uludağ University Journal of The Faculty of Engineering

179

Uludağ University Journal of The Faculty of Engineering