NUMERICAL ALGORITHM USING MULTIZONE ADAPTIVE GRID GENERATION FOR MULTIPHASE TRANSPORT PROCESSES WITH MOVING AND FREE BOUNDARIES

Abstract

The primary objective of this study is to develop a numerical scheme far accurate and efficient simulation of phase-change and transport processes of industrial importance. These processes may include a variety of heat transfer and flaw mechanisms in irregularly shaped domains with moving and / or free boundaries. Based on the muttizone adaptive grid generation ( MAGG) technique ( IJ, a curvilinear finite-volume scheme has been developed to discretize the governing equations. The combination of these two techniques provides a powerful tool for numerical modeling of complex transport processes. Several problems are considered to demonstrate the applicability and accuracy of the proposed method. They are ( 1) natural convection in a differentially heated eccentric annuli, ( 2) solidification of a pure material in a rectangular enclosure, ( 3) solidification in an open cavity with shrinkage due to volume change, and ( 4) Czochralski crystal growth of silicon. The predictions show good agreement with experimental data, much better than the previously reported numerical solutions.

Additional information

Notes on contributors

V. Prasad

Address correspondence to Dr. Vish Prasad, Department of Mechanical Engineering, State University of New York at Stony Brook, Stony Brook, NY 11794-2300, USA.