The Numerical Simulation Of Motive Liquid Metal Velocity In The Electromagnetic Field

Based on the principle of magnetohydrodynamics, the forced state on the liquid metal solidification rotating in the shifty magnetic field and the constant magnetic field were theoretically analyzed and numerically simulated. The result revealed that both the radial compressive force and the tangential component force acting on liquid metal are both varying. An electromagnetic stirrinig effect was taken by the tangentical component force. The ANSYS is the large popular finit element analytic soft. The figure of the shifty electromagnetic fields and the liquid metal velocity in the coupling fields were studied by the method of ANSYS numerical simulation. The analytical result of electromagnetic field reveal that the low frequent current can conduct the stronger magnetic intension than the high frequent current in the same input current; for the three-phase-three-pair-pole electromagnetic drivinig device, the input current of U→-V→W type is better than the input current of U→V→W type and for the two-phase-two-pair-pole electromagnetic drivinig device, the input current of M→N type is better than the input current of M→-N type. Because they both balanced distribution of the shifty electromagnetic; the latter can conduct the much stronger magnetic intension than the former. The analytical result of the velocity reveal that the velocity of the forced convection produced by electromagnetic force is big relatively in the liquid metal and the two-phase-two-pair-pole velocity is much bigger than the three-phase-three-pair-pole; the velocity seems to be raised following the radial direction and the time; the various temperature may cause a litter effect to the velocity of the liquid metal.