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Abstrakty
The present study is devoted to investigating the influences of magnetic field on buoyancy induced flow over vertical flat plate embedded in a non-Newtonian fluid saturated porous medium. The Ostwald-de Waele power-law model is used to characterize the non-Newtonian fluid behavior. A similarity solution for the transformed governing equations is obtained with a prescribed variable surface heat flux. Numerical results for the details of the velocity and temperature profiles are shown on graphs. Excess surface temperature has been presented for different values of the power-law index n, magnetic parameter Mn* and the exponent 'lambda'.
Rocznik
Tom
Strony
117--131
Opis fizyczny
Bibliogr. 22 poz., tab., wykr.
Twórcy
autor
- Department of Mathematic Faculty of Science, South Valley University Aswan, EGYPT
autor
- Department of Mathematic Faculty of Science, South Valley University Aswan, EGYPT
Bibliografia
- [1] Aldoss T.K., Al-Nimr M.A., Jarrah M.A. and Al-Sha’er B.J. (1995): Magnetohydrodynamics mixed convection from a vertical plate embedded in a porous medium. - Numer. Heat Transfer, Part A, vol.28, pp.635-645.
- [2] Aldoss T.K. and Ali Y.D. (1997): MHD mixed convection from a horizontal cylinder in a porous medium. - JSME Int. J., Series B, vol.40, pp.290-295.
- [3] Chen H.T. and Chen C.K. (1988): Free convection of non-Newtonian fluids along a vertical plate embedded in a porous medium. - Trans. ASME, J. Heat Transfer, vol.110, pp.257-260.
- [4] Christopher R.H. and Middleman S. (1965): Power-law flow through a packed tube. - I&EC Fundamentals, vol.4, pp.422-426.
- [5] Dharmadhikari R.V. and Kale D.D. (1985): Flow o f non-Newtonian fluids through porous media. - Chemical Eng. Sci., vol.40, pp.527-529.
- [6] El-Amin M.F. and Mansour M.A. (2000): MHD Effects on power-law fluids over a horizontal plate embedded in a porous medium. - J. Magnetohydrodynamics, Plasma & Space Research, in press.
- [7] Gorla R.S.R., Lee J.K., Nakamura S. and Pop I. (1993): Effects of transverse magnetic field on mixed convection in wali plume of power-law fluids. - Int. J. Eng. Sci., vol.31,pp. 1035-1045.
- [8] Gorla R.S.R., Shanmugam K. and Kumari M. (1997): Nonsimilar Solutions for mixed convection in non-Newtonian fluids along horizontal surfaces in porous media. - Transp. in Porous Media, vol.28, pp.319-334.
- [9] Gulab R. and Mishra R. (1977): Unsteady flow through magnetohydrodynamic porous media. - Indian J. Pure Appl. Math., vol.8, pp.637-642.
- [10] Hady F.M. and Ibrahim F.S. (1997): Forced convection heat transfer on a flat plate embedded in porous media for power-law fluids. - Transp. in porous media, vol.28, pp. 125-134.
- [11] Hossain M.A., Nakayama A. and Pop I. (1995): Conjugate free convection o f non-Newtonian fluids about a vertical cylindrical fm in porous media. - Waerme und Stoffuebertragung, vol.30, pp.149-153.
- [12] Kafoussias N.G. (1992): MHD free convection flow through a nonhomogeneous porous medium over an isothermal cone surface. - Mech. Res. commun., vol.19, pp.89-94.
- [13] Mehta K.N. and Rao K.N. (1994): Buoyancy-induced flow of non-Newtonian fluids over a non-isothermal horizontal plate embedded in a porous medium. - Int. J. Eng. Sci., vol.32, pp.521-525.
- [14] Mehta K.N. and Rao K.N. (1994): Buoyancy-induced flow o f non-Newtonian fluids in a porous medium past a vertical flat plate with non-uniform surface heat flux. - Int. J. Eng. Sci., vol.32, pp.297-302.
- [15] Mohammadien A. A. and Gorla R.S.R. (1996): Effects of transverse magnetic field on mixed convection in a micropolar fluid on a horizontal plate with vectored mass transfer. - Acta Mechanica, vol.l 18, pp.1-12.
- [16] Nakayama A. and Koyama H. (1991): Buoyancy induced flow of non-Newtonian fluids over a non-isothermal body of arbitrary shape in a fluid saturated porous medium. - Applied Scientific Research, vol.48, pp.55-70.
- [17] Nakayama A. (1993): A similarity solution for free convection from a point beat source embedded in a non-Newtonian fluid saturated porous medium. -Trans, of the ASME, J. Heat Transfer, vol.l 15, pp.510-513.
- [18] Nield D.A. and Bejan A. (1992): Convection in Porous Media. - New-York: Springer.
- [19] Raptis A.A. and Kafoussias N.G. (1982): Heat transfer in flow through a porous medium bounded by an infinite vertical plate under the action of a magnetic field. - Energy Res., vol.6, pp.241-245.
- [20] Raptis A. A. (1986): Flow through a porous medium in the presence o f a magnetic field. - Energy Res., vol.10, pp.97-100.
- [21] Takhar H.S. and Ram P.C. (1994): Magnetohydrodynamics free convection flow of water at 4° through a porous medium. - Int. Commun. Heat Mass Transfer, vol.21, pp.371-376.
- [22] Yang Y.T. and Wang S.J. (1996): Free convection heat transfer of non-Newtonian fluids over axisymmetric and two dimensional bodies of arbitrary shape embedded in a fluid saturated porous medium. - Int. J. Heat Mass Transfer, vol.39, No.l, pp.203-210.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BPZ2-0009-0007
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