Open AccessEffect of a Transverse Magnetic Field on Buoyancy-Driven Flow and Heat Transfer in a Porous Trapezoidal Enclosure
Author(s) -
Habibis Saleh,
Ishak Hashim
Publication year - 2016
Publication title -
kontribusi fisika indonesia
Language(s) - English
Resource type - Journals
ISSN - 0854-6878
DOI - 10.5614/itb.ijp.2011.22.3.3
Subject(s) - buoyancy , heat transfer , mechanics , enclosure , materials science , thermal conduction , adiabatic process , magnetic field , isothermal process , porous medium , zigzag , thermodynamics , porosity , geometry , physics , composite material , engineering , electrical engineering , mathematics , quantum mechanics
The effect of a magnetic field on buoyancy-driven flow and heat transfer in a trapezoidal enclosure filled with a fluid-saturated porous medium is studied numerically using the finite difference method. The inclined sloping boundaries are treated by adopting staircase-like zigzag lines. The sloping walls are maintained isothermally at different temperatures. The top and bottom horizontal straight walls are kept adiabatic. The results indicate that the heat is transferred almost entirely by pure conduction with a sufficiently large magnetic field. Utilitizing the square geometry is more effective to suppress the heat transfer rate than the trapezoidal geometry.