Effect of chemical reaction and radiation on double diffusive flow of a viscous, dissipative fluid through porous medium in a rectangular cavity with heat sources

• Autorzy: Raju T. L. , Muralidhar P.

Identyfikatory

DOI

10.2478/ijame-2013-0070

• Języki publikacji: EN

Abstrakty

EN

In this paper, an attempt is made to discuss the combined influence of radiation and dissipation on the convective heat and mass transfer flow of a viscous fluid through a porous medium in a rectangular cavity using the Darcy model. Making use of the incompressibility, the governing non-linear coupled equations for the momentum, energy and diffusion are derived in terms of the non-dimensional stream function, temperature and concentration. The Galerkin finite element analysis with linear triangular elements is used to obtain the global stiffness matrices for the values of stream function, temperature and concentration. These coupled matrices are solved using an iterative procedure and expressions for the stream function, temperature and concentration are obtained as linear combinations of the shape functions. The behavior of temperature, concentration, the Nusselt number and Sherwood number is discussed computationally for different values of the governing parameters, such as the Rayleigh Number (Ra), heat source parameter (α), Eckert number (Ec), Schmidt Number (Sc), Soret parameter (S0), buoyancy ratio (N).

Słowa kluczowe

EN

heat and mass transfer flow; radiation; dissipation; heat sources; rectangular cavity; porous medium

PL

wymiana ciepła; wymiana masy; promieniowanie; rozproszenie; źródło ciepła

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: International Journal of Applied Mechanics and Engineering
• Rocznik: 2013
• Tom: Vol. 18, no. 4
• Strony: 1115--1150
• Opis fizyczny: Bibliogr. 46 poz., tab., wykr.

Twórcy

autor

Raju T. L.

• Dept. of Engineering Mathematics A.U. College of Engineering (A), Andhra University Visakhapatnam-530 003, A.P., INDIA

autor

Muralidhar P.

• Dept. of Engineering Mathematics A.U. College of Engineering (A), Andhra University Visakhapatnam-530 003, A.P., INDIA

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