Title :
Effect of Inclination Angle on Magneto-Convection Inside a Tilted Enclosure
Author :
Pirmohammadi, Mohsen ; Ghassemi, Majid ; Hamedi, Mohsen
Author_Institution :
Mapna Group, Res. Manage. of R&D Deputy, Tehran, Iran
fDate :
6/1/2010 12:00:00 AM
Abstract :
Numerically investigation is carried out for magnetohydrodynamics natural convection in an inclined partitioned enclosure. The vertical walls are maintained isothermal at different temperatures and other walls are adiabatic. Two insulated partitions are located on horizontal walls. Non linear governing equations for the fluid flow and heat transfer are solved for inclination angle varying from 0 deg to 90 deg, three different Hartmann numbers (100, 200, and 300), and three nondimensional partition heights (0.166, 0.25, and 0.33). Rayleigh number and Prandtl number are 106 and 0.054, respectively. A finite volume code based on PATANKAR´s SIMPLER method is utilized. It is found as nondimensional partition height (Hp) and Hartmann number (Ha) increase the mean Nusselt number decreases and this means that the total heat transfer between two isothermal walls is reduced. Also the variation of mean Nusselt number with inclination angle in low Hartmann number is more considerable compare to high Hartmann number.
Keywords :
computational fluid dynamics; confined flow; finite volume methods; magnetohydrodynamics; natural convection; nonlinear equations; Hartmann numbers; Patankar´s simpler method; Prandtl number; Rayleigh number; adiabatic walls; finite volume code; inclination angle effects; inclined partitioned enclosure; insulated partitions; isothermal walls; magnetoconvection; magnetohydrodynamics natural convection; mean Nusselt number; nondimensional partition heights; nonlinear governing fluid flow equations; nonlinear governing heat transfer equations; tilted enclosure; total heat transfer; Equations; Fluid flow; Heat transfer; Hydrodynamics; Insulation; Isothermal processes; Magnetic fields; Magnetic liquids; Mechanical engineering; Temperature control; Inclination angle; magnetic field; natural convection; partition;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2010.2042290