Similarity solutions on mixed convection heat transfer from a horizontal surface saturated in a porous medium with internal heat generation

• Autorzy: Ferdows M. , Liu D.

Identyfikatory

DOI

10.1515/ijame-2017-0015

• Języki publikacji: EN

Abstrakty

EN

The aim of this work is to study the mixed convection boundary layer flow from a horizontal surface embedded in a porous medium with exponential decaying internal heat generation (IHG). Boundary layer equations are reduced to two ordinary differential equations for the dimensionless stream function and temperature with two parameters: ε, the mixed convection parameter, and λ, the exponent of x. This problem is numerically solved with a system of parameters using built-in codes in Maple. The influences of these parameters on velocity and temperature profiles, and the Nusselt number, are thoroughly compared and discussed.

Słowa kluczowe

EN

mixed convection; horizontal porous surface; internal heat generation

PL

konwekcja mieszana; powierzchnia porowata; wytwarzanie ciepła

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: International Journal of Applied Mechanics and Engineering
• Rocznik: 2017
• Tom: Vol. 22, no. 1
• Strony: 253--258
• Opis fizyczny: Bibliogr. 10 poz., tab., wykr.

Twórcy

autor

Ferdows M.

• College of Engineering and Science Louisiana Tech University Ruston, Louisiana, 71272 USA

autor

Liu D.

• College of Engineering and Science Louisiana Tech University Ruston, Louisiana, 71272 USA

Bibliografia

• [1] Postelnicu A. and Pop I. (1999): Similarity solutions of boundary layer free convection flows with internal heat generation about vertical and horizontal surfaces in porous media. – Int. Comm. Heat Mass Transfer, vol.26, pp.1183-1191.
• [2] Postelnicu A., Pop I. and Grosan D. (2000): Free convection boundary-layer flows over a vertical permeable flat plate in porous media with internal heat generation. – Int. Comm. Heat Mass Transfer, vol.27, pp.729-738.
• [3] Postelnicu A., Grosan T. and Pop I. (2001): The effect of variable viscosity on forced convection over a horizontal flat plate in a porous medium with internal heat generation. – Mech. Res. Comm., vol.28, pp.331-337.
• [4] Bagai S. (2003): Similarity solutions of free convection boundary layers over a body of arbitrary shape in porous medium with internal heat generation. – Int. Comm. Heat Mass Transfer, vol.30, pp.997-1003.
• [5] Magyari E., Pop I. and Postelnicu A. (2007): Effect of the source term on steady free convection boundary layer flows over a vertical plate in a porous medium. – Part I., Transport in Porous Media, vol.67, pp.49-67.
• [6] Magyari E., Pop I. and Postelnicu A. (2007): Effect of the source term on steady free convection boundary layer flows over a vertical plate in a porous medium. – Part II, Transport in Porous Media, vol.67, pp.189-201.
• [7] Mealey L.R. and Merkin J.H. (2008): Free convection boundary layers on a vertical surface in a heat-generating porous medium. – IMA Journal of Applied Mathematics, vol.73, pp.231-253.
• [8] Merkin J.H. (2008): Free convective boundary-layer flow in a heat-generating porous medium: similarity solutions. – Q.J. Mech. Appl. Math, vol.61, pp.205-218.
• [9] Cheng P. (1977): Similarity solutions for mixed convection from horizontal impermeable surfaces in saturated porous media. – Int. J. of Heat and Mass Transfer, vol.20, pp.893-898.
• [10] Maple 8.00, Waterloo Maple Inc., 2002.

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017)