Influence of Magnetic Wire Positions on free convection of Fe3O4-Water nanofluid in a Square Enclosure Utilizing with MAC Algorithm

Document Type : Research Paper

Authors
K VENKATADRI 1
A shobha 2
C Venkata Lakshmi 3
V Ramachandra Prasad 4
B. Md Hidayathulla Khan 5
1 Department of Mathematics, Sreenivasa Institute of Technology and Management studies
2 Department of Applied Mathematics, Sri Padmavati Mahila Visvavidyalayam, Tirupati
3 Department of Applied Mathematics, Sri Padmavati Mahila Visvavidyalayam Tirupati.
4 Department of Mathematics, SAS VIT University, Vellore.
5 Department of Mathematics, Sir Vishveshwaraiah Institute of Science and Technology Madanapalle.
10.22059/jcamech.2019.288693.426
Abstract
The augment of heat transfer and fluid of buoyancy-driven flow of Fe3O4-Water nanofluid in a square cavity under the influence of an external magnetic field is studied numerically. Cold temperature is applied on the side (vertical) walls and high temperature is imposed on the bottom wall while the top wall is kept at thermally insulated. The governing non-dimensional differential equations are solved using Marker and Cell (MAC) Algorithm. The developed MATLAB code is validated with previous literature and it gives good agreement. The effects of Rayleigh number Ra, Prandtl number Pr and Hartmann number Ha on the flow and heat transfer characteristics are analyzed. Results indicate that the temperature gradient is an increasing function of the buoyancy force. The heat transfer characteristics and flow behavior are presented in the form of streamlines and isotherms. The position of magnetic wire is played a vital role in controlling of heat transfer rate.
Keywords
MAC Method
Magnetizable Fluid
Magnetic Sources
Enclosure
Nanofluid
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Journal of Computational Applied Mechanics
Volume 51, Issue 2
December 2020
Pages 323-331

  • Receive Date 09 September 2019
  • Accept Date 18 December 2019