Computational modeling of electrodynamic and transport phenomena in materials processing systems

Issue title: Proceedings of the tenth International Symposium on Applied Electromagnetics and Mechanics ISEM-Tokyo

Article type: Research Article

Authors: Li, B.Q.^{a; *} | He, R.^b

Affiliations: [a] School of Mechanical and Materials Engineering,Washington State University, Pullman, WA 99164, USA | [b] Department of Thermal Engineering, Tsinghua Unviersity, Beijing, China

Correspondence: [*] Corresponding author: Ben Q. Li, Tel.: +1 509 335 7386; Fax: +1 509 335 4662; E-mail: li@mme.wsu.edu

Abstract: This paper discusses the numerical modeling of coupled electromagnetic and transport (fluid flow and heat and mass transfer) phenomena in materials processing systems under both terrestrial and microgravity conditions. Two types of magnetically induced transport phenomena are considered and both require iterative numerical computations. For the former, the flow is activated through Faraday's law and the computational methodology entails the use of the boundary element method to model the free space region and of the finite element method to model the interior region of the liquid. Computations involve the iterative solution of magnetic fields, fluid flow and surface stress balance when free surface deformation occurs. For the later, the fluid motion is suppressed by an applied DC magnetic field and flow and magnetic fields are coupled so that iterative computational procedure is again required. For this later case, computational costs are substantially reduced by carefully designing the finite element global matrix structure.

DOI: 10.3233/JAE-2002-500

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 14, no. 1-4, pp. 459-466, 2002