NUMERICAL SIMULATION OF DOUBLE-DIFFUSIVE MIXED CONVECTION IN A HORIZONTAL ANNULUS UNDER TANGENTIAL MAGNETIC FIELD, WITH A ROTATING OUTER CYLINDER

2018 ◽  
Vol 49 (14) ◽  
pp. 1385-1402
Author(s):  
Mehdi Bidabadi ◽  
Vahid Bordbar ◽  
Alireza Khoeini Poorfar ◽  
Bengt Sunden ◽  
Goodarz Ahmadi
Keyword(s):  
Magnetic Field ◽  
Numerical Simulation ◽  
Mixed Convection ◽  
Outer Cylinder ◽  
Double Diffusive

Numerical Simulation Study for the Effect of the Strength and the Direction of a Static Magnetic Field on the Transient Double-Diffusive Flow in Liquid Phase during an Alloy Solidification

2010 ◽  
Vol 297-301 ◽  
pp. 97-104 ◽  
Author(s):  
Farid Mechighel ◽  
Bernard Pateyron ◽  
Mahfoud Kadja ◽  
Mohammed El Ganaoui ◽  
S. Dost
Keyword(s):  
Magnetic Field ◽  
Numerical Simulation ◽  
Static Magnetic Field ◽  
Simulation Study ◽  
Solidification Process ◽  
Magnetic Field Effects ◽  
Charge Balance ◽  
Diffusive Flow ◽  
Volume Method ◽  
Double Diffusive

A numerical simulation study has been carried out to examine the effect of a static magnetic field on the solidification process of an alloy. A mathematical model, based on the continuum model, was developed for the computation of a transient double-diffusive fluid flow under Lorentz body force. The model includes conservation of mass and momentum, heat, species and electrical charge balance equations. The simulation domain was selected as a cavity filled with a metallic alloy and differentially heated, which may be taken as a Bridgman model domain used in the crystal growth process. The solution is carried out by using a Finite Volume Method. Study of the direction and the intensity of the applied magnetic field effects on stabilizing the double diffusive flow field were also carried out. Simulation results indicate that the use of a static, magnetic field in this growth setup is effective in suppressing natural convection in the solution.

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