Parallel computation of multiscale phenomena in magnetically‐stirred solidifying melts

Abstract

Purpose

The aim of this paper is to determine a parallel computational methodology for simultaneously predicting the macro/micro scale phenomena occurring during solidification processing with external electromagnetic stirring.

Design/methodology/approach

Macro and micro phenomena occurring in an electromagnetically‐stirred solidifying melt are simulated using a numerical model that integrates the finite element methodology for transport phenomena and the Monte‐Carlo cellular‐automata method for microstructure formation. Parallel algorithm is introduced to enhance the computational efficiency.

Findings

Computed results show that parallel algorithm can be effective in enhancing the computational efficiency of a combined macro/micro model if it is applied appropriately. Also, electromagnetically induced stirring can have a strong effect on the nucleation and grain growth and hence the final solidification microstructure.

Originality/value

This paper fulfils a need for developing an efficient numerical methodology to simulate complex electromagnetically‐assisted transport phenomena and microstructure formation during solidification processing systems.

Citation

Li, B.Q. (2008), "Parallel computation of multiscale phenomena in magnetically‐stirred solidifying melts", International Journal of Numerical Methods for Heat & Fluid Flow, Vol. 18 No. 2, pp. 131-145. https://doi.org/10.1108/09615530810846293