PL EN


Preferencje help
Widoczny [Schowaj] Abstrakt
Liczba wyników
Tytuł artykułu

MHD natural convection flow past an impulsively moving vertical plate with ramped wall temperature in the presence of thermal diffusion with heat absorption

Wybrane pełne teksty z tego czasopisma
Identyfikatory
Warianty tytułu
Języki publikacji
PL
Abstrakty
EN
Hydromagnetic natural convection flow of a viscous incompressible electrically conducting and heat-absorbing fluid past an impulsively moving vertical plate with ramped wall temperature in a porous medium, in the presence of thermal diffusion, is studied. The exact solution of momentum and energy equations, under the Boussinesq approximation, is obtained in closed form by the Laplace transform technique. The expressions for the skin friction and Nusselt number are also derived. The variations in fluid velocity and temperature are shown graphically whereas numerical values of skin friction and the Nusselt number are presented in tabular form for various values of pertinent flow parameters. The natural convection flow near a ramped temperature plate is also compared with the flow near an isothermal plate.
Rocznik
Strony
199--215
Opis fizyczny
Bibliogr. 28 poz., tab., wykr.
Twórcy
autor
  • Department of Applied Mathematics Indian School of Mines University Dhanbad-826004, Jharkhand, INDIA, gsseth_ism@yahoo.com
Bibliografia
  • Abramowitcz M. and Stegun I.A. (1972): Handbook of Mathematical Functions with Formulas, Graph and Mathematical Tables. - New York: Dover Publications, Inc., Tenth Edition.
  • Acharya S. and Goldstein R.J. (1985): Natural convection in an externally heated vertical or inclined square box containing internal energy sources. - ASME J. Heat Transfer, vol.107, pp.855-866.
  • Aldoss T.K., Al-Nimr M.A., Jarrah M.A. and Al-Shaer B.J. (1995): Magnetohydrodynamic mixed convection from a vertical plate embedded in a porous medium. - Numer. Heat Transfer, vol.28, pp.635-645.
  • Cao T.T. (1975): Laminar free convective heat transfer response along a vertical flat plate with step jump in surface temperature. - Lett. Heat Mass Transfer, vol.2, pp.419-428.
  • Carslaw H.S. and Jaeger J.C. (1963): Operational Methods in Applied Mathematics. - New York: Dover Publications, 2nd Edition.
  • Chamkha A.J. (1997): Hydromagnetic natural convection from an isothermal inclined surface adjacent to a thermally stratified porous medium. - Int. J. Eng. Sci., vol.35, pp.975-986.
  • Chamkha A.J. (1996): Non-Darcy hydromagnetic free convection from a cone and a wedge in porous media. - Int. Comm. Heat Mass Transfer, vol.23, pp.875-887.
  • Chamkha A.J. (1997): Non-Darcy fully developed mixed convection in a porous medium channel with heat generation/absorption and hydromagnetic effects. - Numer. Heat Transfer, vol.32, pp.653-675.
  • Chamkha A.J. (2004): Unsteady MHD convective heat and mass transfer past a semi- infinite vertical permeable moving plate with heat absorption. - Int. J. Eng. Sci., vol.42, pp.217-230.
  • Chandran P., Sacheti N.C. and Singh A.K. (2005): Natural convection near a vertical plate with ramped wall temperature. - Heat Mass Transfer, vol.41, pp.459-464.
  • Cheng P. and Minkowycz W.J. (1977): Free convection about a vertical flat plate embedded in a porous medium with application to heat transfer from a dike. - J. Geophys. Res., vol.82, pp.2040-2044.
  • Cramer K.R. and Pai S.I. (1973): Magnetofluid Dynamics for Engineers and Applied Physicists. - New York: McGraw-Hill.
  • Hayday A.A., Bowlus D.A. and McGraw R.A. (1967): Free convection from a vertical plate with step discontinuities in surface temperature. - ASME J. Heat Transfer, vol.89, pp.244-250.
  • Hsieh J.C., Chen T.S. and Armaly B.F. (1993): Non-similarity solutions for mixed convection from vertical surfaces in porous media: variable surface temperature or heat flux. - Int. J. Heat Mass Transfer, vol.36, pp.1485-1493.
  • Ibrahim F.S., Hassanien I.A. and Bakr A.A. (2004): Unsteady Magnetohydrodynamic micropolar fluid flow and heat transfer over a vertical porous medium in the presence of thermal and mass diffusion with constant heat source. - Canad. J. Phys., vol.82, pp.775-790.
  • Jha B.K. (1991): MHD free-convection and mass-transform flow through a porous medium. - Astrophys. Space Sci., vol.175, pp.283-289.
  • Kelleher M. (1971): Free convection from a vertical plate with discontinuous wall temperature. - ASME J. Heat Transfer, vol.93, pp.349-356.
  • Lai F.C. and Kulacki F.A. (1991): Non-Darcy mixed convection along a vertical wall in a saturated porous medium. - J. Heat Transfer, vol.113, pp.252-254.
  • Lee S. and Yovanovich M.M. (1991): Laminar natural convection from a vertical plate with a step change in wall temperature. - ASME J. Heat Transfer, vol.113, pp.501-504.
  • Minkowycz W.J., Cheng P. and Chang C.H. (1985): Mixed convection about a non-isothermal cylinder and sphere in a porous medium. - Numer. Heat Transfer, vol.8, pp.349-359.
  • Nakayama A. and Koyama H. (1987): A general similarity transformation for combined free and forced convection flows within a fluid saturated porous medium. - ASME J. Heat Transfer, vol.109, pp.1041-1045.
  • Ranganathan P. and Viskanta R. (1984) Mixed convection boundary layer flow along a vertical surface in a porous medium. - Numer. Heat Transfer, vol.7, pp.305-317.
  • Raptis A. and Kafousias N. (1982): Heat transfer in flow through a porous medium bounded by an infinite vertical plate under the action of a magnetic field. - Int. J. Energy Res., vol.6, pp.241-245.
  • Raptis A. (1986): Flow through a porous medium in the presence of a magnetic field. - Int. J. Energy Res., vol.10, pp.97-100.
  • Sahoo D.G. and Sahoo P.K. (1986): Hydromagnetic free convection and mass transfer through a porous medium. - Ind. J. Tech., vol.24, pp.553-556.
  • Takhar H.S. and Ram P.C. (1991): Free convection in hydromagnetic flows of a viscous heat-generating fluid with wall temperature oscillation and Hall currents. - Astrophys. Space Sci., vol.183, pp.193-198.
  • Takhar H.S. and Ram P.C. (1994): Magnetohydrodynamic free convection flow of water at 40C through a porous medium. - Int. Comm. Heat Mass Transfer, vol.21, pp.371-376.
  • Vajravelu K. and Nayfeh J. (1992): Hydromagnetic convection at a cone and a wedges. - Int. Comm. Heat Mass Transfer, vol.19, pp.701-710.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BPZ5-0003-0030
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.