Effects of Soret Dufour,chemical reaction and thermal radiation on MHD non-Darcy unsteady mixed convective heat and mass transfer over a stretching sheet |
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| Institution: | 1. Department of Mathematics, Visva-Bharati University, Santiniketan 731235, West Bengal, India;2. Department of Mathematics, Bengal Institute of Technology and Management, Santiniketan 731236, West Bengal, India;1. Department of Mathematics, Visva-Bharati University, Siksha-Bhavana, Santiniketan, West Bengal 731 235, India;2. Siksha-Satra, Visva-Bharati, Sriniketan, West Bengal 731 236, India;1. Department of Mathematics, University of Peshawar, Pakistan;2. Department of Mathematics, GITAM University, Vishakhapatnam, Andhra Pradesh 530045, India;3. Shanghai Key Lab of Vehicle Aerodynamics and Vehicle Thermal Management Systems, Tongji University, 4800 Cao An Rd., Jiading, Shanghai 201804, China;4. ENN-Tongji Clean Energy Institute of Advanced Studies, Shanghai, China;5. CORIA-UMR 6614, Normandie University, CNRS-University&INSA of Rouen, 76800 St Etienne du Rouvray, France;6. Department of Industrial Engineering, University of Parma, 43124 Parma, Italy;1. Mathematics Department, Faculty of Science, Zagazig University, Zagazig, Egypt;2. Mathematics Department, Faculty of Science, Imam Abdulrahman Bin Faisal University, Al-Dammam, Saudi Arabia;3. Mathematics Department, Faculty of Science, El Azhar University, Cairo, Egypt;1. School of Mathematics and Physics, University of Science and Technology Beijing, Beijing 100083, China;2. School of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100083, China |
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| Abstract: | A study has been carried out to analyze the combined effects of Soret (thermal-diffusion) and Dufour (diffusion-thermo) on unsteady MHD non-Darcy mixed convection over a stretching sheet embedded in a saturated porous medium in the presence of thermal radiation, viscous dissipation and first-order chemical reaction. Energy equation takes into account of viscous dissipation, thermal radiation and Soret effects. The governing differential equations are transformed into a set of non-linear coupled ordinary differential equations and solved using similarity analysis with numerical technique using appropriate boundary conditions for various physical parameters. The numerical solution for the governing nonlinear boundary value problem is based on shooting algorithm with Runge–Kutta–Fehlberg integration scheme over the entire range of physical parameters. The effects of various physical parameters on the dimensionless velocity, temperature and concentration profiles are depicted graphically and analyzed in detail. Favorable comparisons with previously published work on various special cases of the problem are obtained. Numerical results for local skin-friction, local Nusselt number, and local Sherwood number are tabulated for different physical parameters. |
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