Analysis of heatlines and entropy generation during double-diffusive MHD natural convection within a tilted sinusoidal corrugated porous enclosure
DOI: 10.1016/J.JESTCH.2015.12.001
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摘要: Abstract The natural convection and entropy generation during double-diffusive MHD in a tilted sinusoidal corrugated porous enclosure is investigated numerically this work by using heatline visualization technique. top bottom horizontal walls are assumed as adiabatic non-diffusive, while the left right vertical sidewalls maintained at constant hot cold temperatures concentrations respectively. flow subjected to an inclined magnetic field. filled with electrically conducting fluid [Pr = 0.024] saturated media. numerical computations presented for various values of Rayleigh number (Ra), Hartmann (Ha), Lewis (Le), Darcy (Da), buoyancy ratio (N), field orientation angle (φ) inclination (Φ). In addition, due friction, thermal gradients, diffusion, beside total studied discussed. It found that circulation decreases strongly when applied horizontally considered vertical. Heatline concept successfully problem. average Nusselt increases, Sherwood increases increases. Also, both numbers increase increase. Moreover, results show generations higher than corresponding it
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