Premium
Unsteady free convective flow and mass transfer through a porous medium bounded by an infinite vertical limiting surface with constant suction and time‐dependent temperature
Author(s) -
Raptis A. A.
Publication year - 1983
Publication title -
international journal of energy research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.808
H-Index - 95
eISSN - 1099-114X
pISSN - 0363-907X
DOI - 10.1002/er.4440070409
Subject(s) - mechanics , porous medium , suction , mass transfer , constant (computer programming) , thermodynamics , convection , compressibility , work (physics) , materials science , physics , classical mechanics , porosity , composite material , computer science , programming language
In this work an analysis of the two‐dimensional unsteady free convective flow and mass transfer is given, for an incompressible viscous fluid through a porous medium bounded by an infinite vertical limiting surface. The suction velocity perpendicular to the limiting surface is constant and the temperature of the limiting surface fluctuates with time about a non‐zero constant mean. Expressions for the velocity, temperature and concentration fields are obtained and the effects of the various parameters of the problem, e.g. modified Grashoff number, permeability of the porous medium and the frequency on the velocity field are discussed.