WIT Press


Hybrid Method For Numerical Solution Of Moving Boundary Problems In Laser Surface Melting

Price

Free (open access)

Paper DOI

10.2495/MB950411

Volume

13

Pages

8

Published

1995

Size

797 kb

Author(s)

H. Haferkamp, A. Mai Tuan & M. Marquering

Abstract

The powerful standard enthalpy method is modified to simulate the laser melting and solidification process of multi-layer systems. The classical Stefan boundary condition is involved in to the modified enthalpy method tracking the real position of the solid-liquid interface (the moving boundary) within a grid element, where the phase change takes place. 1 Introduction There are two main groups to solve the moving boundary (MB) problems with the help of finite differences: the Fixed Domain (1-Domain) Method and the Variable Domain (2- Domain) Method. In the variable domain method, the evolution of the MB has been treated directly or indirectly using the classical Stefan energy balance equation. Depending on the way of handling the MB, variable domain method c

Keywords