Thermal management of MHD nanofluid within the porous medium enclosed in a wavy shaped cavity with square obstacle in the presence of radiation heat source

•Nanofluid thermal management inside a porous media is studied.•CVFEM is offered and employed to model the solutions of the developed problem.•Nuave goes up by increasing in Radiation parameter.•Conduction becomes more effective as enhancing the Hartmann number. In this manuscript, we present nanofl...

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Bibliographic Details
Published in:International journal of heat and mass transfer 2019-08, Vol.139, p.87-94
Main Authors: Alkanhal, Tawfeeq Abdullah, Sheikholeslami, M., Usman, Muhammad, Haq, Rizwan-ul, Shafee, Ahmad, Al-Ahmadi, Abdullah Saad, Tlili, I.
Format: Article
Language:English
Subjects:
Comparative studies
CVFEM
Darcy law
Dimensional changes
Finite element method
Fluid flow
Hartmann number
Heat sources
Magnetic
Magnetic fields
Nanofluid
Nanofluids
Nanoparticles
Nanoparticle’s shape
Parameters
Porous media
Radiation
Shape effects
Shape factor
Thermal management
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Summary:•Nanofluid thermal management inside a porous media is studied.•CVFEM is offered and employed to model the solutions of the developed problem.•Nuave goes up by increasing in Radiation parameter.•Conduction becomes more effective as enhancing the Hartmann number. In this manuscript, we present nanofluid thermal management inside a porous media including magnetic force and radiation heat sources. The systems of PDEs were changed into the non-dimensional form by means of the suitable transform. To gain the outputs, control volume finite element method (CVFEM) was utilized. Radiative source term was involved in final PDEs. Isotherms and streamlines are plotted to demonstrate the variation of Hartmann number, radiation factor, buoyancy and nanoparticles' shape on nanofluid behavior. Outputs demonstrate that convective mode becomes stronger with augment of shape factor. By involving source terms of magnetic field, conduction becomes more effective. Average Nusselt number grows as enhancing the shape effect parameters “m”, Radiation effect and Raleigh number. As increasing Radiation and Raleigh parameters average temperature deceases gradually. The comparative study is also presented, which shows the reliability and efficiency of the CVFEM. Graphical study also shows strengthen of suggested technique.
ISSN:0017-9310
1879-2189
DOI:10.1016/j.ijheatmasstransfer.2019.05.006