Thermal Performance Analysis And Characterization For Mobile Radio

Steady natural convection flow field and its heat transfer of a mobile radio are very complex and three dimensional. Accurate and reliable numerical solution for low speed (at the magnitude of 1 x 10-1 m/s), transitional flow induced by the interaction between buoyancy force and gravity is yet a cha...

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Main Author:	Chee, Jiunn Shyong
Format:	Thesis
Language:	English
Published:	2013
Subjects:	TJ1-1570 Mechanical engineering and machinery
Online Access:	http://eprints.usm.my/46072/1/Chen%20Jian%20Jie24.pdf
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id	my-usm-ep.46072
record_format	uketd_dc
spelling	my-usm-ep.460722020-02-03T06:24:40Z Thermal Performance Analysis And Characterization For Mobile Radio 2013-11 Chee, Jiunn Shyong TJ1-1570 Mechanical engineering and machinery Steady natural convection flow field and its heat transfer of a mobile radio are very complex and three dimensional. Accurate and reliable numerical solution for low speed (at the magnitude of 1 x 10-1 m/s), transitional flow induced by the interaction between buoyancy force and gravity is yet a challenge on many commercially available computational fluid dynamic (CFD) codes, as these CFD codes mainly developed for solving forced convection heat transfer analysis. In this study, the appropriate boundary conditions, turbulence model, external volume and meshing methods that contribute to a reliable CFD heat transfer prediction of a mobile radio were identified by utilizing CFDesign, a commercial finite element method CFD tool. Prior to carry out a thermal simulation of natural convection on a mobile radio, efforts to validate the prediction accuracy of CFDesign for different turbulence models, which are zero-equation mixing-length, two-equation κ-ε and Low-Reynolds κ-ε were carried using a simple rectangular square enclosure with heat source located centrally on the bottom surface. Isotherm results obtained are correlated with results published by Calcagni, Marsili et al. (2005), predicted by means of Fluent, a finite volume method code, and also results from Aydin and Yang (2000) by utilizing finite difference method code. The purpose of this prediction accuracy validation is to identify the most suitable turbulence model that deliver realistic temperature distribution and flow field of natural convection heat transfer CFD simulation in CFDesign. 2013-11 Thesis http://eprints.usm.my/46072/ http://eprints.usm.my/46072/1/Chen%20Jian%20Jie24.pdf application/pdf en public masters Universiti Sains Malaysia Pusat Pengajian Kejuruteraan Mekanikal
institution	Universiti Sains Malaysia
collection	USM Institutional Repository
language	English
topic	TJ1-1570 Mechanical engineering and machinery
spellingShingle	TJ1-1570 Mechanical engineering and machinery Chee, Jiunn Shyong Thermal Performance Analysis And Characterization For Mobile Radio
description	Steady natural convection flow field and its heat transfer of a mobile radio are very complex and three dimensional. Accurate and reliable numerical solution for low speed (at the magnitude of 1 x 10-1 m/s), transitional flow induced by the interaction between buoyancy force and gravity is yet a challenge on many commercially available computational fluid dynamic (CFD) codes, as these CFD codes mainly developed for solving forced convection heat transfer analysis. In this study, the appropriate boundary conditions, turbulence model, external volume and meshing methods that contribute to a reliable CFD heat transfer prediction of a mobile radio were identified by utilizing CFDesign, a commercial finite element method CFD tool. Prior to carry out a thermal simulation of natural convection on a mobile radio, efforts to validate the prediction accuracy of CFDesign for different turbulence models, which are zero-equation mixing-length, two-equation κ-ε and Low-Reynolds κ-ε were carried using a simple rectangular square enclosure with heat source located centrally on the bottom surface. Isotherm results obtained are correlated with results published by Calcagni, Marsili et al. (2005), predicted by means of Fluent, a finite volume method code, and also results from Aydin and Yang (2000) by utilizing finite difference method code. The purpose of this prediction accuracy validation is to identify the most suitable turbulence model that deliver realistic temperature distribution and flow field of natural convection heat transfer CFD simulation in CFDesign.
format	Thesis
qualification_level	Master's degree
author	Chee, Jiunn Shyong
author_facet	Chee, Jiunn Shyong
author_sort	Chee, Jiunn Shyong
title	Thermal Performance Analysis And Characterization For Mobile Radio
title_short	Thermal Performance Analysis And Characterization For Mobile Radio
title_full	Thermal Performance Analysis And Characterization For Mobile Radio
title_fullStr	Thermal Performance Analysis And Characterization For Mobile Radio
title_full_unstemmed	Thermal Performance Analysis And Characterization For Mobile Radio
title_sort	thermal performance analysis and characterization for mobile radio
granting_institution	Universiti Sains Malaysia
granting_department	Pusat Pengajian Kejuruteraan Mekanikal
publishDate	2013
url	http://eprints.usm.my/46072/1/Chen%20Jian%20Jie24.pdf
_version_	1747821605064540160

Thermal Performance Analysis And Characterization For Mobile Radio

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