The influence of different orientations and ventilation cases on temperature distribution of the car cabin in the hot soak

Chen, Suifan; Du, Binbin; Li, Qipeng; Duan, Xue

doi:10.1016/j.csite.2022.102401

Cited by 6 publications

(2 citation statements)

References 23 publications

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“…Computational fluid dynamics methods were used for the experiments. The Reynolds number in the cabin of an automobile is relatively small, and the air can be regarded as steady-state turbulence, the flow of fluids in nature needs to obey the three laws of fluid dynamics [4].…”

Section: Methodsmentioning

confidence: 99%

“…To guarantee the precision of the computations while minimizing processing time, an optimal mesh size was determined that balances accuracy and efficiency. Additionally, a mesh independence verification was conducted to ensure that the chosen mesh configuration would provide a suitable simulation environment [4]. The overall grid cell size of the cabin is set to 25 mm, curvature capture and capture proximity are turned on, and all other settings are left at default values.…”

Section: Mesh Segmentation and Validationmentioning

confidence: 99%

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Numerical simulation of hot soak in cabin based on ventilation strategy

Chen,

2024

J. Phys.: Conf. Ser.

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To address the issue of excessive heat within the vehicle’s cabin, this study employs transient simulation methods to explore and analyze how various ventilation tactics and parameters influence the cabin’s temperature distribution and air quality. Findings indicate that the optimal thermal comfort and air quality conditions are achieved through the implementation of a top ventilation strategy. Specifically, with an air supply velocity of 3 m/s, a supply air temperature of 19°C, and an airflow direction of 15°, the air age at the driver’s breathing zone is measured at 18.92 seconds, while it stands at 20.35 seconds at the child passenger’s breathing zone. This ventilation setup achieves an air exchange efficiency of up to 80.1%, nearly complete pollutant removal efficiency, and places the thermal comfort at monitored human body points within a range deemed satisfactory or comfortable. Overall, this configuration yields the most favorable conditions for the comfort of the driver and passengers compared to other scenarios examined.

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Section: Methodsmentioning

confidence: 99%

Section: Mesh Segmentation and Validationmentioning

confidence: 99%