Magnetohydrodynamics (MHD) Flow And Heat Transfer Of A Doubly Stratified Nanofluid Using Cattaneo-Christov Model
The present study utilized Cattaneo-Christov heat flux model for solving nanofluid flow and heat transfer towards a vertical stretching sheet with the presence of magnetic field and double stratification. Thermal and solutal buoyancy forces are also examined to deal with the double stratification ef...
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my.utem.eprints.243342020-10-23T11:13:15Z http://eprints.utem.edu.my/id/eprint/24334/ Magnetohydrodynamics (MHD) Flow And Heat Transfer Of A Doubly Stratified Nanofluid Using Cattaneo-Christov Model Khashi’ie, Najiyah Safwa Md Arifin, Norihan Hafidzuddin, Ezad Hafidz Wahi, Nadihah Ilias, Mohd Rijal The present study utilized Cattaneo-Christov heat flux model for solving nanofluid flow and heat transfer towards a vertical stretching sheet with the presence of magnetic field and double stratification. Thermal and solutal buoyancy forces are also examined to deal with the double stratification effects. Buongiorno’s model of nanofluid is used to incorporate the effects of Brownian motion and thermophoresis. The boundary layer with non-Fourier energy equations are reduced into a system of nonlinear ordinary (similarity) differential equations using suitable transformations and then numerically solved using bvp4c solver in MATLAB software. The local Nusselt and Sherwood numbers of few limited cases are tabulated and compared with the earlier published works. It showed that a positive agreement was found with the previous study and thus, validated the present method. Numerical solutions are graphically demonstrated for several parameters namely magnetic, thermal relaxation, stratifications (thermal and solutal), thermophoresis and Brownian motion on the velocity, temperature and nanoparticles volume fraction profiles. An upsurge of the heat transfer rate was observed with the imposition of the thermal relaxation parameter (Cattaneo-Christov model) whereas the accretion of thermal and solutal stratification parameters reduced the temperature and nanoparticles concentration profiles, respectively. 2019 Article PeerReviewed text en http://eprints.utem.edu.my/id/eprint/24334/2/UJME%20%28PUBLISHED%29.PDF Khashi’ie, Najiyah Safwa and Md Arifin, Norihan and Hafidzuddin, Ezad Hafidz and Wahi, Nadihah and Ilias, Mohd Rijal (2019) Magnetohydrodynamics (MHD) Flow And Heat Transfer Of A Doubly Stratified Nanofluid Using Cattaneo-Christov Model. Universal Journal of Mechanical Engineering, 7 (4). pp. 206-214. ISSN 2332-3361 http://www.hrpub.org/download/20190630/UJME9-15190635.pdf 10.13189/ujme.2019.070409 |
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The present study utilized Cattaneo-Christov heat flux model for solving nanofluid flow and heat transfer towards a vertical stretching sheet with the presence of magnetic field and double stratification. Thermal and solutal buoyancy forces are also examined to deal with the double stratification effects. Buongiorno’s model of nanofluid is used to incorporate the effects of Brownian motion and thermophoresis. The boundary layer with non-Fourier energy equations are reduced into a system of nonlinear ordinary (similarity) differential equations using suitable transformations and then numerically solved using bvp4c solver in MATLAB software. The local Nusselt and Sherwood numbers of few limited cases are tabulated and compared with the earlier published works. It showed
that a positive agreement was found with the previous study and thus, validated the present method. Numerical solutions are graphically demonstrated for several parameters namely magnetic, thermal relaxation, stratifications (thermal and solutal), thermophoresis and Brownian motion on the velocity, temperature and nanoparticles volume fraction profiles. An upsurge of the heat transfer rate was observed with the imposition of the thermal relaxation parameter (Cattaneo-Christov model) whereas the accretion of thermal and solutal stratification parameters reduced the temperature and nanoparticles concentration profiles, respectively. |
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Khashi’ie, Najiyah Safwa Md Arifin, Norihan Hafidzuddin, Ezad Hafidz Wahi, Nadihah Ilias, Mohd Rijal |
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Khashi’ie, Najiyah Safwa Md Arifin, Norihan Hafidzuddin, Ezad Hafidz Wahi, Nadihah Ilias, Mohd Rijal Magnetohydrodynamics (MHD) Flow And Heat Transfer Of A Doubly Stratified Nanofluid Using Cattaneo-Christov Model |
author_facet |
Khashi’ie, Najiyah Safwa Md Arifin, Norihan Hafidzuddin, Ezad Hafidz Wahi, Nadihah Ilias, Mohd Rijal |
author_sort |
Khashi’ie, Najiyah Safwa |
title |
Magnetohydrodynamics (MHD) Flow And Heat Transfer Of A Doubly Stratified Nanofluid Using Cattaneo-Christov Model |
title_short |
Magnetohydrodynamics (MHD) Flow And Heat Transfer Of A Doubly Stratified Nanofluid Using Cattaneo-Christov Model |
title_full |
Magnetohydrodynamics (MHD) Flow And Heat Transfer Of A Doubly Stratified Nanofluid Using Cattaneo-Christov Model |
title_fullStr |
Magnetohydrodynamics (MHD) Flow And Heat Transfer Of A Doubly Stratified Nanofluid Using Cattaneo-Christov Model |
title_full_unstemmed |
Magnetohydrodynamics (MHD) Flow And Heat Transfer Of A Doubly Stratified Nanofluid Using Cattaneo-Christov Model |
title_sort |
magnetohydrodynamics (mhd) flow and heat transfer of a doubly stratified nanofluid using cattaneo-christov model |
publishDate |
2019 |
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http://eprints.utem.edu.my/id/eprint/24334/2/UJME%20%28PUBLISHED%29.PDF http://eprints.utem.edu.my/id/eprint/24334/ http://www.hrpub.org/download/20190630/UJME9-15190635.pdf |
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