Hsiuping University of Science and Technology Institutional Repository : Item 310993100/325

English | 正體中文 | 简体中文 | Items with full text/Total items : 4334/7631
Visitors : 3194976 Online Users : 384

RC Version 3.2 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.

Scope Adv. Search

Login ‧ Upload ‧ Help ‧ About ‧ Administer

HUSTIR > College of Engineering > Department of Mechanical Engineering & Graduate Institute of Precision Machinery and Manufacturing Technology > Journal > Item 310993100/325

Please use this identifier to cite or link to this item: http://ir.hust.edu.tw/dspace/handle/310993100/325

Title:	Vortex instability of MHD natural convection flow over an isothermal horizontal plate in a saturated porous medium
Authors:	Chung-Ting Hsu
Keywords:	MHD porous medium natural convection horizontal
Date:	2007-03
Issue Date:	2008-08-25T06:32:27Z
Abstract:	A numerical analysis is performed to study the vortex instability of a horizontal magnetohydrodynamics (MHD) natural convection boundary layer flow in a saturated porous medium with surface mass flux. The stability analysis is based on the linear stability theory. The resulting eigenvalue problem is solved by the local similarity method. The velocity and temperature profiles, local Nusselt number, as well as instability parameters for magnetic parameter M ranging from 0 to 4 are presented. It is found that as magnetic parameter M increases, the heat transfer rate and tangential velocity decrease. Furthermore, it is shown that as the magnetic parameter M increases, the neutral stability curves shift to lower Rayleigh number and lower wave number, indicating a destabilization of the flow to vortex instability. It is also shown that suction stabilizes the flow, while blowing destabilizes the flow.
Relation:	修平學報 14, 85-98
Appears in Collections:	[Department of Mechanical Engineering & Graduate Institute of Precision Machinery and Manufacturing Technology] Journal

Files in This Item:

File	Size	Format
14-07 Vortex instability of MHD natural convection flow over an isothermal horizontal plate in a saturat.pdf	1494Kb	Adobe PDF	1628	View/Open