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Advances and Applications in Fluid Mechanics

Abstract:
Influence of a magnetic field on entropy generation in Poiseuille-Benard channel for the laminar flow of an incompressible electrically conducting fluid is numerically investigated by solving the mass, momentum and energy conservation equations. Numerical scheme is based on control volume finite element method with the SIMPLER algorithm for pressure-velocity coupling. Numerical simulations are performed for Reynolds number ranging between 10 and 50 and Stuart number (describing the magnetic field effect) ranging between 0 and 14. The irreversibility distribution ratio,

ranges between 0.001 and 0.1. Special case where

and

is discussed in details.

Keywords and phrases: entropy generation, convective cell, irreversible processes, magnetic field, mixed convection.

Communicated by K. K. Azad

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