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Numerical analysis of electromagnetic parameters of thermal dominated double diffusive magneto-convection
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نویسنده
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maatki c. ,kolsi l. ,ghachem k. ,alghamdi a.s. ,borjini m.n. ,ben aissïa h.
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منبع
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journal of engineering research - 2017 - دوره : 5 - شماره : 3 - صفحه:198 -215
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چکیده
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This paper presents a numerical investigation of the electromagnetic parameters of magnetohydrodynamic (mhd) thermosolutal natural convection in a cubic cavity. verticals sides were maintained at constant temperatures and concentrations,although the other sides are adiabatic. a uniform magnetic field is imposed in the x-direction. three-dimensional equations of mass conservation,momentum,energy,species,ohms law and conservation of electric charge were solved using finite volume method. results in term of current density,electrical potential,velocity field and hartmann layer,were obtained for ra = 105,pr = 10,le = 10,n = -0.5 and different hartmann numbers. many results were deduced from this work. firstly,the electrical potential gradients are inversely proportional to the magnetic field intensity. in addition,for low hartmann numbers,the current circulation is more pronounced near of the active walls. in addition,the increase of magnitude of magnetic field causes the reduction of the density of the direct and indirect induced current.
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آدرس
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unité de recherche de métrologie et des systèmes energétiques,ecole nationale d'ingénieurs,university of monastir,monastir,tunisia,ecole nationale d'ingénieurs de bizerte 7030,university of carthage, Tunisia, college of engineering,mechanical engineering department,haïl university,haïl city,saudi arabia,unité de recherche de métrologie et des systèmes energétiques,ecole nationale d'ingénieurs,university of monastir,monastir, Tunisia, unité de recherche de métrologie et des systèmes energétiques,ecole nationale d'ingénieurs,university of monastir,monastir, Tunisia, college of engineering,mechanical engineering department,haïl university,haïl city, Saudi Arabia, unité de recherche de métrologie et des systèmes energétiques,ecole nationale d'ingénieurs,university of monastir,monastir, Tunisia, unité de recherche de métrologie et des systèmes energétiques,ecole nationale d'ingénieurs,university of monastir,monastir, Tunisia
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Authors
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