Magnetohydrodynamic (MHD) Flow in a Channel Including a Rotating Cylinder

Abstract

Heat transfer analysis in channels and enclosures has significant attention nowadays. In the present work, fluid flow and heat transfer of a vertical channel consisting of a rotating cylinder utilizing nanofluid have been studied, numerically. Uniform magnetic field has been applied to the fluid field. Different cylinder rotation directions, Hartmann number and rotational velocity of cylinder configurations have been considered. T he results indicate that by increasing the Hartmann num ber, for low values of nondimensional angular velocity the average Nusselt number increases. In addition, in higher Hartmann numbers, the average Nusselt number does not change remarkably with non-dimensional angular velocity. Furthermore, studying lift and drag coefficients demonstrate that in a constant Hartmann number, the highest drag coefficient takes place in maximum cylinder angular velocity. Additionally, almost uniform distribution of drag coefficient can be seen in higher Hartmann numbers. The numerical results have been compared with the previously reported results. This comparison illustrates excellent agreement between them.

The application of analytical methods in the investigation effects of Magnetic parameter and Brownian motion on the fluid flow between two equal plates

“…mixed convection heat transfer from Al2O3-water nanofluid in W-shaped, copper tube cause the rate of heat transfer coefficient improved with Reynolds number for average wall temperatures of 50 and 60ºC. Magneto hydrodynamic nanofluid flow between two parallel analyzed and results showed concentration of nanofluid diminishes when Brownian movement increments whereas it increases with expands of thermophoretic parameter [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20]. Gupta et al [21] examined magneto convection in a nanofluid.…”