Numerical Investigation of Entropy Generation in Unsteady MHD Generalized Couette Flow with Variable Electrical Conductivity

Abstract EN

The thermodynamic second law analysis is utilized to investigate theinherent irreversibility in an unsteady hydromagnetic generalized Couette flow withvariable electrical conductivity in the presence of induced electric field.

Based onsome simplified assumption, the model nonlinear governing equations are obtainedand solved numerically using semidiscretization finite difference techniques.

Effectsof various thermophysical parameters on the fluid velocity, temperature, currentdensity, skin friction, the Nusselt number, entropy generation number, and the Bejannumber are presented graphically and discussed quantitatively.