A Model for Solidification Under the Influence of Thermoelectric and Magnetohydrodynamic Effects: Application to Peltier Demarcation During Directional Solidification With Different Gravitational Conditions-Reference-Cited by-同舟云学术

A Model for Solidification Under the Influence of Thermoelectric and Magnetohydrodynamic Effects: Application to Peltier Demarcation During Directional Solidification With Different Gravitational Conditions

Published:1998-05-01 Issue:2 Volume:120 Page:430-440
ISSN:0022-1481
Container-title:Journal of Heat Transfer
language:en
Short-container-title:

Author:

Zheng L. L.¹,Zhang H.²,Larson D. J.¹,Prasad V.³

Affiliation:

1. Department of Materials Science and Engineering, State University of New York at Stony Brook, Stony Brook, NY 11794

2. Department of Mechanical Engineering, State University of New York at Stony Brook, Stony Brook, NY 11794

3. Consortium for Crystal Growth Research, State University of New York at Stony Brook, Stony Brook, NY 11794

Abstract

A physics-based model is developed to study the gravitational (convection), thermoelectric (Peltier, Seebeck, Joule, and Thomson) and magnetohydrodynamic (Lorentz force) effects on solidification phenomena. A scaling analysis is carried out to examine the importance and contributions of various governing parameters. Directional solidification with Peltier Interface Demarcation under varying gravitational conditions is simulated for the Bridgman–Stockbarger configuration. The predicted interface location and movement during current pulsing are studied and the microstructures corresponding to different current polarities are analyzed based on Jackson–Hunt theory.

Publisher

ASME International

Subject

Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science

Link

http://asmedigitalcollection.asme.org/heattransfer/article-pdf/120/2/430/5557710/430_1.pdf

Reference19 articles.

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