Journal article
An interface tracking method applied to morphological evolution during phase change
International journal of heat and mass transfer, Vol.36(7), pp.1833-1844
1993
DOI: 10.1016/S0017-9310(05)80170-X
Abstract
The focus of this work is the numerical simulation of interface motion during solidification of pure materials. First, we assess the applicability of the oft-used quasi-stationary approximation for interface motion. Such an approximation results in poor accuracy for non-trivial Stefan numbers. Next, a generic interface tracking procedure is designed, which overcomes restrictions of single-valuedness of the interface imposed by commonly used mapping methods. This method incorporates with ease interface phenomena involving curvature, which assume importance at the smaller scales of a deformed interface. The method is then applied to study the development of a morphologically unstable phase interface. The issue of appropriate scaling has been addressed. The Gibbs-Thomson effect for curved interfaces has been included. The evolution of the interface, with the competing mechanisms of undercooling and surface tension is found to culminate in tip-splitting, cusp formation and persistent cellular development.
Details
- Title: Subtitle
- An interface tracking method applied to morphological evolution during phase change
- Creators
- W SHYY - Univ. Florida, dep. aerospace eng. mechanics eng. sci., Gainesville FL 32611, United StatesH S Uday Kumar - Univ. Florida, dep. aerospace eng. mechanics eng. sci., Gainesville FL 32611, United StatesS.-J LIANG - Univ. Florida, dep. aerospace eng. mechanics eng. sci., Gainesville FL 32611, United States
- Resource Type
- Journal article
- Publication Details
- International journal of heat and mass transfer, Vol.36(7), pp.1833-1844
- DOI
- 10.1016/S0017-9310(05)80170-X
- ISSN
- 0017-9310
- eISSN
- 1879-2189
- Publisher
- Elsevier; Oxford
- Language
- English
- Date published
- 1993
- Academic Unit
- Injury Prevention Research Center; Mechanical Engineering
- Record Identifier
- 9984064221302771
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