Effect of magnetic field and heat source on Upper-convected-maxwell fluid in a porous channel
Autor: | Murad Ullah, Iskander Tlili, Tawfeeq Abdullah Alkanhal, Ilyas Khan, Zeeshan Khan, Haroon Rasheed |
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Rok vydání: | 2018 |
Předmět: |
45.10.-b
Imagination Materials science QC1-999 020209 energy media_common.quotation_subject General Physics and Astronomy 02 engineering and technology 47.10.-g Porous channel Physics::Fluid Dynamics porisity 0202 electrical engineering electronic engineering information engineering 47.56.+r Magnetohydrodynamic drive media_common Thesaurus (information retrieval) Physics magnetohydrodynamic Mechanics 021001 nanoscience & nanotechnology Magnetic field heat source/sink ucmf 47.55.pb shrinking channel 0210 nano-technology |
Zdroj: | Open Physics, Vol 16, Iss 1, Pp 917-928 (2018) |
ISSN: | 2391-5471 |
Popis: | The effect of magnetic field on the flow of the UCMF (Upper-Convected-Maxwell Fluid) with the property of a heat source/sink immersed in a porous medium is explored. A shrinking phenomenon along with the permeability of the wall are considered. The governing equations for the motion and transfer of heat of the UC MF along with boundary conditions are converted into a set of coupled nonlinear mathematical equations. Appropriate similarity transformations are used to convert the set of nonlinear partial differential equations into nonlinear ordinary differential equations. The modeled ordinary differential equations have been solved by the Homotopy Analysis Method (HAM). The convergence of the series solution is established. For the sake of comparison, numerical (ND-Solve method) solutions are also obtained. Special attention is given to how the non-dimensional physical parameters of interest affect the flow of the UCMF. It is observed that with the increasing Deborah number the velocity decreases and the temperature inside the fluid increases. The results show that the velocity and temperature distribution increases with a porous medium. It is also observed that the magnetic parameter has a decelerating effect on velocity while the temperature profiles increases in the entire domain. Due to the increase in Prandtl number the temperature profile increases. It is also observed that the heat source enhance the thermal conductivity and increases the fluid temperature while the heat sink provides a decrease in the fluid temperature. |
Databáze: | OpenAIRE |
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