Applications of a generalized phase change model for melting and solidification of materials with internal heat generations
Abstract
Melting and solidification of materials with internal heat generations are investigated. Solutions to several problems by an enthalpy method have been obtained and presented. The solutions reveal the existence of a mushy zone in which liquid and solid coexist. This distinct mushy zone, which is not allowed for in the classical phase change model, is located between the pure liquid zone on one side and the pure solid zone on the other. It exhibits unique characteristics and plays a significant role in phase change analysis. Results confirm that a generalized phase change model should consist of three possible zones, the liquid, mushy and solid zones.
- Publication:
-
AIAA, 19th Thermophysics Conference
- Pub Date:
- June 1984
- Bibcode:
- 1984thph.confS....C
- Keywords:
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- Heat Generation;
- Materials Tests;
- Melting Points;
- Phase Transformations;
- Solidification;
- Enthalpy;
- Heat Transfer;
- Mathematical Models;
- Phase Change Materials;
- Radiation Absorption;
- Time Dependence;
- Fluid Mechanics and Heat Transfer