Simulation of steady mixed convection in a lid-driven cavity filled with newtonian fluid by finite volume method

The steady mixed convection flow in a lid-driven cavity was simulated. The cavity was filled with a Newtonian fluid, both vertical walls are adiabatic, while the horizontal walls were either fixed cold and uniformly/oscillatory heated. Firstly, the effect of internal heat generation or absorption on...

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Main Author:	Abu Bakar, Norhaliza
Format:	Thesis
Language:	English English English
Published:	2019
Subjects:	QA Mathematics
Online Access:	http://eprints.uthm.edu.my/107/1/24p%20NORHALIZA%20ABU%20BAKAR.pdf http://eprints.uthm.edu.my/107/2/NORHALIZA%20ABU%20BAKAR%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/107/3/NORHALIZA%20ABU%20BAKAR%20WATERMARK.pdf
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spelling	my-uthm-ep.1072021-06-22T07:59:45Z Simulation of steady mixed convection in a lid-driven cavity filled with newtonian fluid by finite volume method 2019-09 Abu Bakar, Norhaliza QA Mathematics The steady mixed convection flow in a lid-driven cavity was simulated. The cavity was filled with a Newtonian fluid, both vertical walls are adiabatic, while the horizontal walls were either fixed cold and uniformly/oscillatory heated. Firstly, the effect of internal heat generation or absorption on the fluid flow and heat transfer behaviours was studied. The moving upper wall was uniformly heated while the bottom wall was kept cold. The effect of magnetic field on fluid flow and heat transfer was analysed in the second problem. An inclined magnetic field was considered in the third problem. In the fourth problem, the flow inside an inclined cavity was simulated, where the top wall was subjected to an heated oscillating temperature. Finally, the mixed convection within an inclined cavity with the presence of an inclined magnetic field was studied. The dimensionless governing equations were formulated by using appropriate reference variables. These equations were solved using the finite volume method. The convection-diffusion terms were discretized using the power law scheme while the pressure and velocity components were coupled using the SIMPLE algorithms. The resultant matrices were then solved iteratively using the Tri- Diagonal Matrix Algorithm coded in FORTRAN90. The present solutions obtained were then compared with those of previous studies and a good agreement was found. The numerical results were presented in the forms of isotherm and streamline. It was found that the heat transfer rate in an inclined cavity increased mildly for both forced convection dominated and mixed convection dominated regimes. However, for natural convection dominated regime, the heat transfer rate decreased when the inclination angle was 30◦ and increased when the inclination angles reached 60◦. The presence of external forces would affect the local heat transfer and fluid flow behaviours significantly. 2019-09 Thesis http://eprints.uthm.edu.my/107/ http://eprints.uthm.edu.my/107/1/24p%20NORHALIZA%20ABU%20BAKAR.pdf text en public http://eprints.uthm.edu.my/107/2/NORHALIZA%20ABU%20BAKAR%20COPYRIGHT%20DECLARATION.pdf text en staffonly http://eprints.uthm.edu.my/107/3/NORHALIZA%20ABU%20BAKAR%20WATERMARK.pdf text en validuser phd doctoral Universiti Tun Hussein Onn Malaysia Fakulti Sains Gunaan dan Teknolgi
institution	Universiti Tun Hussein Onn Malaysia
collection	UTHM Institutional Repository
language	English English English
topic	QA Mathematics
spellingShingle	QA Mathematics Abu Bakar, Norhaliza Simulation of steady mixed convection in a lid-driven cavity filled with newtonian fluid by finite volume method
description	The steady mixed convection flow in a lid-driven cavity was simulated. The cavity was filled with a Newtonian fluid, both vertical walls are adiabatic, while the horizontal walls were either fixed cold and uniformly/oscillatory heated. Firstly, the effect of internal heat generation or absorption on the fluid flow and heat transfer behaviours was studied. The moving upper wall was uniformly heated while the bottom wall was kept cold. The effect of magnetic field on fluid flow and heat transfer was analysed in the second problem. An inclined magnetic field was considered in the third problem. In the fourth problem, the flow inside an inclined cavity was simulated, where the top wall was subjected to an heated oscillating temperature. Finally, the mixed convection within an inclined cavity with the presence of an inclined magnetic field was studied. The dimensionless governing equations were formulated by using appropriate reference variables. These equations were solved using the finite volume method. The convection-diffusion terms were discretized using the power law scheme while the pressure and velocity components were coupled using the SIMPLE algorithms. The resultant matrices were then solved iteratively using the Tri- Diagonal Matrix Algorithm coded in FORTRAN90. The present solutions obtained were then compared with those of previous studies and a good agreement was found. The numerical results were presented in the forms of isotherm and streamline. It was found that the heat transfer rate in an inclined cavity increased mildly for both forced convection dominated and mixed convection dominated regimes. However, for natural convection dominated regime, the heat transfer rate decreased when the inclination angle was 30◦ and increased when the inclination angles reached 60◦. The presence of external forces would affect the local heat transfer and fluid flow behaviours significantly.
format	Thesis
qualification_name	Doctor of Philosophy (PhD.)
qualification_level	Doctorate
author	Abu Bakar, Norhaliza
author_facet	Abu Bakar, Norhaliza
author_sort	Abu Bakar, Norhaliza
title	Simulation of steady mixed convection in a lid-driven cavity filled with newtonian fluid by finite volume method
title_short	Simulation of steady mixed convection in a lid-driven cavity filled with newtonian fluid by finite volume method
title_full	Simulation of steady mixed convection in a lid-driven cavity filled with newtonian fluid by finite volume method
title_fullStr	Simulation of steady mixed convection in a lid-driven cavity filled with newtonian fluid by finite volume method
title_full_unstemmed	Simulation of steady mixed convection in a lid-driven cavity filled with newtonian fluid by finite volume method
title_sort	simulation of steady mixed convection in a lid-driven cavity filled with newtonian fluid by finite volume method
granting_institution	Universiti Tun Hussein Onn Malaysia
granting_department	Fakulti Sains Gunaan dan Teknolgi
publishDate	2019
url	http://eprints.uthm.edu.my/107/1/24p%20NORHALIZA%20ABU%20BAKAR.pdf http://eprints.uthm.edu.my/107/2/NORHALIZA%20ABU%20BAKAR%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/107/3/NORHALIZA%20ABU%20BAKAR%20WATERMARK.pdf
_version_	1747830530726952960

Simulation of steady mixed convection in a lid-driven cavity filled with newtonian fluid by finite volume method

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