Free convection in a 3D chamber with local cooling and heating

Nasiri, M.; Ghasemi, B.

doi:10.22061/jcarme.2013.60

Document Type : Research Paper

Authors

Shahrekord University, Department of Mechanical Engineering, Shahrekord, Iran

https://doi.org/10.22061/jcarme.2013.60

Abstract

This paper modeled heating air of a room through examining free convection in a 3D chamber. The chamber had cold and hot sources with T_c and T_h temperatures, respectively. Its other walls were adiabatic. This study aimed at predicting effect of temperature difference, displacement of hot and cold sources and their aspect ratio on flow field, temperature and heat transfer rate. To conduct the study, mass conservation, momentum and energy equations were applied in laminar and 3D states while assuming fluid constant properties, except density, in the power of buoyancy (Boussinesq approximation). Final difference method (FDM) was used for numerical solution of the governing equations based on the volume control and SIMPLE algorithm. According to the modeling results, the most favorable temperature distribution in the chamber (room) was obtained when the heat source (radiator) was located on the wall under the cold source (window). Reducing the distance between the two sources would result in increasing heat transfer from the heating sources.

Keywords

20.1001.1.22287922.2013.3.1.6.2

Main Subjects

Heat and Mass Transfer

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Journal of Computational & Applied Research in Mechanical Engineering (JCARME)

Free convection in a 3D chamber with local cooling and heating

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Volume 3, Issue 1 - Serial Number 1
December 2013
Pages 63-74

Free convection in a 3D chamber with local cooling and heating

References

References

Send comment about this article

Volume 3, Issue 1 - Serial Number 1December 2013Pages 63-74

Volume 3, Issue 1 - Serial Number 1
December 2013
Pages 63-74