Numerical simulation of thermal radiative heat transfer effects on Fe3O4-ethylene glycol nanofluid EHD flow in a porous enclosure

Document Type: Article

Authors

1 Department of Mechanical Engineering, Babol noshirvani university of tehcnlogy

2 Department of Mechanical Engineering, Babol University of Technology, Babol, Iran

3 School of Mechatronic Engineering, China University of Mining & Technology, Xuzhou 221110, China

4 Department of Mechanical Engineering, Babol Noshirvani University of Technology, Babol, Iran

Abstract

Electrohydrodynamic Fe3O4- Ethylene glycol nanofluid forced convection is simulated in existence of thermal radiation. The porous lid driven cavity has one moving positive electrode. Single phase model has been applied to simulate nanofluid behavior. Control Volume based Finite Element Method is employed to obtain the results which are the roles of Darcy number , radiation parameter , Reynolds number , nanofluid volume fraction and supplied voltage . Results depict that maximum values for temperature gradient is obtained for platelet shape nanoparticles. Nusselt number enhances with rise of Darcy number and supplied voltage. Convection mode enhances with increase of permeability of porous media and nanofluid volume fraction but it decreases with rise of Hartmann number.

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Scientia Iranica

Volume 26, Issue 3
Transactions on Mechanical Engineering (B)
May and June 2019
Pages 1405-1414

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