MHD natural convection and thermal control inside a cavity with obstacles under the radiation effects

M. Usman, Z.H. Khan and M.B. Liu

Physica A: Statistical Mechanics and its Applications, 2019, vol. 535, issue C

Abstract: Understanding of flow nature inside a close geometry as well as analysis of heat augmentation through fluids has been gaining a vital interest among research community due to industrial and engineering applications. Herein, a model study is conduced to investigate the heat and mass transfer of Magnetohydrodynamic (MHD) flow enclosed a square cavity with top wall is heated. Two heated and two clod square obstacles are placed inside the square cavity. Feasible nondimensional variables are introduced to transform the continuity, momentum and energy equations into nondimensional form. A finite element model is developed and applied to investigate the numerical solutions of nondimensional set of partial differential equations. In order to scrutinize the significant influence of dimensionless parameters on streamlines, isotherms and isoconcentrations simulations are executed when the bottom squares are heated. It is detected that Nusselt numbers increases as enhancing the thermal radiation parameter. Comparison of the achieved results for local and average Nusselt numbers with published results are presented, which are evident that the suggested method is well-matched to examine the solutions of such types of problems and it can be extended for solving diversified problem of physical nature having complex geometry.

Keywords: Natural convection; Thermal radiation; Magnetic field; Square enclosure; Numerical simulation; Finite element method (search for similar items in EconPapers)
Date: 2019
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0378437119314050
Full text for ScienceDirect subscribers only. Journal offers the option of making the article available online on Science direct for a fee of $3,000

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:535:y:2019:i:c:s0378437119314050

DOI: 10.1016/j.physa.2019.122443

Access Statistics for this article

Physica A: Statistical Mechanics and its Applications is currently edited by K. A. Dawson, J. O. Indekeu, H.E. Stanley and C. Tsallis

More articles in Physica A: Statistical Mechanics and its Applications from Elsevier
Bibliographic data for series maintained by Catherine Liu ().