Three-dimensional control of crystal growth using magnetic fields

George S. Dulikravich; Vineet Ahuja; Seungsoo Lee

doi:10.1117/12.148505

23 July 1993 Three-dimensional control of crystal growth using magnetic fields

George S. Dulikravich, Vineet Ahuja, Seungsoo Lee

Proceedings Volume 1916, Smart Structures and Materials 1993: Smart Materials; (1993) https://doi.org/10.1117/12.148505
Event: 1993 North American Conference on Smart Structures and Materials, 1993, Albuquerque, NM, United States

Abstract

Two coupled systems of partial differential equations governing three-dimensional laminar viscous flow undergoing solidification or melting under the influence of arbitrarily oriented externally applied magnetic fields have been formulated. The model accounts for arbitrary temperature dependence of physical properties including latent heat release, effects of Joule heating, magnetic field forces, and mushy region existence. On the basis of this model a numerical algorithm has been developed and implemented using central differencing on a curvilinear boundary-conforming grid and Runge-Kutta explicit time-stepping. The numerical results clearly demonstrate possibilities for active and practically instantaneous control of melt/solid interface shape, the solidification/melting front propagation speed, and the amount and location of solid accrued.

Citation Download Citation

George S. Dulikravich, Vineet Ahuja, and Seungsoo Lee "Three-dimensional control of crystal growth using magnetic fields", Proc. SPIE 1916, Smart Structures and Materials 1993: Smart Materials, (23 July 1993); https://doi.org/10.1117/12.148505

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