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Radiation and Chemical Reaction Effects on Unsteady Coupled Heat and Mass Transfer by Free Convection from a Vertical Plate Embedded in Porous Media | ||
| Journal of Heat and Mass Transfer Research | ||
| مقاله 64، دوره 7، شماره 2 - شماره پیاپی 14، بهمن 2020، صفحه 95-103 اصل مقاله (1.28 M) | ||
| نوع مقاله: Full Length Research Article | ||
| شناسه دیجیتال (DOI): 10.22075/jhmtr.2019.10763.1149 | ||
| نویسندگان | ||
| Abdelraheem Aly* 1؛ A. J Chamkha2؛ Z. A. S Raizah3 | ||
| 1Department of Mathematics, Faculty of Science, South Valley university, Qena, Egypt | ||
| 2Faculty of Engineering, Kuwait College of Science and Technology, Doha District, Kuwait. | ||
| 3Department of Mathematics, Faculty of Science, Abha, King Khalid University, Saudi Arabia. | ||
| تاریخ دریافت: 16 اسفند 1395، تاریخ بازنگری: 28 تیر 1398، تاریخ پذیرش: 01 مرداد 1398 | ||
| چکیده | ||
| A numerical solution is presented for unsteady coupled heat and mass transfer by natural convection from a vertical plate embedded in a uniform porous medium in the presence of thermal radiation and chemical reaction effects. The governing equations for this problem were developed and non-dimensionalized and the resulting equations were then solved numerically by an explicit finite-difference scheme. The Roseland approximation is used to describe the radiative heat flux in the energy equation. The solutions at each time step have been found to reach the steady state solution properly. The numerical results are presented in the graphical form to show the effects of material parameters including the thermal buoyancy, the solutal buoyancy, Reynolds number, the inverse thermal radiation parameter, the permeability parameter, Prandtl number, Schmidt number and the chemical reaction parameter on the skin-friction coefficient, the Nusselt number, the Sherwood number, the velocity profiles, the temperature profiles and the concentration profiles in the boundary layer. | ||
| کلیدواژهها | ||
| Finite-difference solution؛ radiation؛ chemical reaction؛ Porous medium | ||
| مراجع | ||
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[1] M.Y. Gokhale, Magnetohydrodynamic transient-free convection past a semi-infinite vertical plate with constant heat flux, Can. J. Phys. 69 (1991) 1451–1453. [2] H.S. Takhar, P. Ganesan, K. Ekambavahar, V.M. Soundalgekar, Transient free convection past a semi-infinite vertical plate with variable surface temperature, Int. J. Numer. Meth. Heat Fluid Flow 7 (1997) 280–296. [3] R. Muthukumaraswamy, P. Ganesan, Unsteady flow past an impulsive by started vertical plate with heat and mass transfer, Heat Mass Transfer 34 (1998) 187–193. [4] H.S. Takhar, R.S.R. Gorla, V.M. Soundalgekar, Radiation effects on MHD free convection flow of a gas past a semi-infinite vertical plate, Int. J. Numer. Meth. Heat Fluid Flow 6 (1996) 77–83. [5] R. Muthucumaraswamy, P. Ganesan, Diffusion and first-order chemical reaction on impulsively started infinite vertical plate with variable temperature, Int. J. Therm. Sci. 41 (2002) 475–479. [6] S.P. Anjali Devi, R. Kandasamy, Effects of chemical reaction, heat and mass transfer on non-linear MHD laminar boundary-layer flow over a wedge with suction or injection, Int. Commun. Heat Mass Transfer 29 (2002) 707–716. [7] Sieniutycz Stanislaw, Nonlinear macrokinetics of heat and mass transfer and chemical or electrochemical reactions, Int. J. Heat Mass Transfer 47 (2004) 515–526. [8] D. Abdulkadir, K. Yuksel, N. Veziroglu, Investigation of heat and mass transfer in a metal hydride bed, Applied Mathematics and Computation 150 (2004) 169–180. [9] R. Kandasamy, K. Periasamy, K.K. Sivagnana Prabhu, Effects of chemical reaction, heat and mass transfer along a wedge with heat source and concentration in the presence of suction or injection, Int. J. Heat Mass Transfer 48 (2005) 1388–1394. [10] R. Kandasamy, K. Periasamy, K.K. Sivagnana Prabhu, Chemical reaction, heat and mass transfer on MHD flow over a vertical stretching surface with heat source and thermal stratification effects, Int. J. Heat Mass Transfer 48 (2005) 4557–4561. [11] A. J. Chamkha, A. M. Aly and M. A. Mansour, SIMILARITY SOLUTION FOR UNSTEADY HEAT AND MASS TRANSFER FROM A STRETCHING SURFACE EMBEDDED IN A POROUS MEDIUM WITH SUCTION/INJECTION and CHEMICAL REACTION EFFECTS, Chemical Engineering Communications,197:6, (2010) 846-858. A. M. Aly / JHMTR 7 (2020) First page- Last page 103 [12] A. J. Chamkha, A. M. Aly, and M. A. Mansour. "Unsteady natural convective power-law fluid flow past a vertical plate embedded in a non-Darcian porous medium in the presence of a homogeneous chemical reaction." Nonlinear Anal.: Model. Control 15.2 (2010): 139-154. [13] A. J. Chamkha, M.A. Mansour, A. Aly, Unsteady MHD free convective heat and mass transfer from a vertical porous plate with Hall current, thermal radiation and chemical reaction effects, International Journal for Numerical Methods in Fluids, 65 (2011) 432-447. [14] A. J. Chamkha and A. M. Aly, HEAT AND MASS TRANSFER IN STAGNATION-POINT FLOW OF A POLAR FLUID TOWARDS A STRETCHING SURFACE IN POROUS MEDIA IN THE PRESENCE OF SORET, DUFOUR AND CHEMICAL REACTION EFFECTS, Chemical Engineering Communications, 198: 2 (2010), 214-234. [15] M.A. Mansour, N.F. El-Anssary, A.M. Aly, Effects of chemical reaction and thermal stratification on MHD free convective heat and mass transfer over a vertical stretching surface embedded in a porous media considering Soret and Dufour numbers, Chemical Engineering Journal, 145(2), (2008) 340-345. [16] M.A. Abd El-Naby, E.M.E. Elbarbary, N.Y. Abed Elazem, Finite difference solution of radiation effects on MHD unsteady free-convection flow over vertical porous plate, Applied Mathematics and Computation 151 (2004) 327–346. [17] P. Ganesan, G. Palani, Finite difference analysis of unsteady natural convection MHD flow past an inclined plate with variable surface heat and mass flux, Int. J. Heat Mass Transfer 47 (2004) 4449–4457. [18] S.M.M. EL-Kabeir, A.M. Rashad, R.S.R. Gorla, Unsteady MHD combined convection over a moving vertical sheet in a fluid saturated porous medium with uniform surface heat flux, Mathematical and Computer Modelling 46 (2007) 384–397. [19] I.U. Mbeledogu, A. Ogulu, Heat and mass transfer of an unsteady MHD natural convection flow of a rotating fluid past a vertical porous flat plate in the presence of radiative heat transfer, Int. J. Heat Mass Transfer 50 (2007) 1902–1908. [15] E.M. Sparrow, R.D. Cess, Radiation heat transfer,Hemisphere, Augment Edition (1962). [20] A.M. Rashad, M.M. Rashidi, G. Lorenzini, S.E. Ahme, A.M. Aly, Magnetic field and internal heat generation effects on the free convection in a rectangular cavity filled with a porous medium saturated with Cu–water nanofluid, International Journal of Heat and Mass Transfer, 104 (2017) 878-889. [21] A. Basiri Parsa, M.M.Rashidi, O.Anwar Bég, S.M.Sadri, Semi-computational simulation of magneto-hemodynamic flow in a semi-porous channel using optimal homotopy and differential transform methods, Computers in Biology and Medicine, Vol. 43, Iss. 9 (2013) 1142-1153. [22] Ali J. Chamkha, , M. F. El-Amin, and A. M. Aly. Unsteady double-diffusive natural convective MHD flow along a vertical cylinder in the presence of chemical reaction, thermal radiation and Soret and Dufour effects. Journal of Naval Architecture and Marine Engineering 8.1 (2011): 25-36. [23] Ali J. Chamkha, A. M. Rashad, and Abdelraheem M. Aly. Transient natural convection flow of a nanofluid over a vertical cylinder, Meccanica 48.1 (2013): 71-81. [24] Abdelraheem M. Aly, and Sameh Elsayed Ahmed. "Double-diffusive natural convective flow of a nanofluid over a vertical cylinder." Journal of Nanofluids 5.1 (2016): 110-119. | ||
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