An enthalpy method for modeling dendritic growth in a binary alloy

An enthalpy fixed grid method is developed for modeling dendritic growth in an under-cooled binary alloy. The proposed numerical method couples explicit finite difference solutions of equations expressing the conservation of enthalpy and solute to an iterative procedure that enforces node by node co...

Full description

Saved in:
Bibliographic Details
Published in:International journal of heat and mass transfer 2008-02, Vol.51 (3), p.823-834
Main Author: Voller, V.R.
Format: Article
Language:English
Subjects:
Anisotropy
Binary alloy
Cross-disciplinary physics: materials science
rheology
Dendritic growth
Enthalpy
Exact sciences and technology
Materials science
Phase diagrams and microstructures developed by solidification and solid-solid phase transformations
Physics
Solidification
Under-cooling
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:An enthalpy fixed grid method is developed for modeling dendritic growth in an under-cooled binary alloy. The proposed numerical method couples explicit finite difference solutions of equations expressing the conservation of enthalpy and solute to an iterative procedure that enforces node by node consistency between enthalpy, solute, liquid fraction, and interface under-cooling. Calculations made with the scheme, are consistent with previously reported work, agree well with limit analytical solutions, approach the correct steady-state tip operating conditions, show grid size independence, are relatively free of grid anisotropy, and can be obtained with a low CPU cost.
ISSN:0017-9310
1879-2189
DOI:10.1016/j.ijheatmasstransfer.2007.04.025