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- 저자 : Munazza Saeed (검색결과 2 건)
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Tasawar Abbas,Munazza Saeed,Kaouther Ghachem,Badr M. Alshammari,Sami Ullah Khan,Lioua Kolsi 한국자기학회 2023 Journal of Magnetics Vol.28 No.1
The thermal flow of second grade fluid with Soret and Dufour effects has been observed in this investigation. The problem is modified with mixed convection and thermal radiation applications. The thermal conductivity with variable relations is used to analyze the transport phenomenon. Further, the applications of mixed convection and magnetic force has also been focused. The convective thermal and concentration flow constraints are used for the current flow problem. The shooting numerical scheme is used to calculate the numerical observations. The major impact of parameters is visualized for flow parameters. It is observed that the velocity profile increases for curvature parameter and viscoelastic fluid parameter. The assumptions of variable thermal conductivity enhanced with transport phenomenon. The Nusselt number declined for variable thermal conductivity parameter.
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Fouad Mallawi,Tasawar Abbas,Munazza Saeed,Bilal Ahmad,Taseer Muhammad 한국자기학회 2024 Journal of Magnetics Vol.29 No.1
The heat and mass transfer effects on steady two-dimensional magneto hydrodynamic flow of second-grade fluid is carried out in this study. Mathematical formulations for nonlinear flows over stretching surface in the presence of magnetic field, temperature dependent thermal conductivity, porous medium and convective boundary are carried out in Cartesian coordinate system. The model equations are determined by using fundamental laws of fluid mechanics. The governing PDEs for second-grade fluid have been derived and then transfigured into a system of nonlinear coupled ODEs via appropriate similarity transformation. The BVP is then solved by an efficient numerical scheme known as Runge Kutta Fehlberg method along with shooting technique. The outcomes are presented graphically and tabulated with the aim of illustrating the physical impacts of governing parameters on the temperature, concentration, and velocity profiles. Greater Prandtl numbers result in a decrease in temperature, while higher values of thermal conductivity and coefficient of internal heat absorption all result in an increase in temperature. Further, comparison of the results with published literature for limited cases show the validity of numerical technique.
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