Natural Convection in Car Environment Conditions

When thermal simulations for car environment in natural convection conditions are requested, often the basis of using a default air velocity of 0.2 m/s, instead of 0.0 m/s, as the boundary condition, is called into question. If you use an air velocity of 0.0 m/s, the system is isolated from the rest...

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Bibliographic Details
Main Author: Dragan, Cristina Mihaela
Format: Conference Proceeding
Language:English
Subjects:
Atmospheric modeling
Automobiles
Convection
Drag
Force
Solid modeling
Temperature measurement
Online Access:Request full text
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Summary:When thermal simulations for car environment in natural convection conditions are requested, often the basis of using a default air velocity of 0.2 m/s, instead of 0.0 m/s, as the boundary condition, is called into question. If you use an air velocity of 0.0 m/s, the system is isolated from the rest of the car cabin and extreme real-world conditions are not reproduced anymore in simulations. The methodology used in the paper comprises the analytical approach, numerical and experimental measurements. The analytical approach is based on the equilibrium of the gravitational, buoyancy, drag and viscosity forces. The numerical analysis is performed by ICEPAK commercial software based on the finite volume method. Experimental setup used for validation of both analytical and numerical analysis covers perfectly both the geometry and physical conditions presented.
ISSN:2474-1523
DOI:10.1109/THERMINIC.2018.8593298