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An enrichment scheme for solidification problems
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DOI：10.1007/s00466-012-0792-9.png)
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Abstract
En 中文
A new enriched finite element formulation for solving isothermal phase change problems is presented. We propose a fixed mesh method, where the discontinuity in the temperature gradient is represented by enriching the finite element space through a function whose definition includes a gradient discontinuity. Generally, in these types of formulations, the enrichment location (the location of the solidification front) is determined through a level set auxiliary scheme. In this work, this position is determined implicitly by constraining the temperature at the phase change boundary to be equal to the melting temperature. Several numerical examples are presented to show the application of the method.
Keywords:
Enriched finite element method
Solidification problems
Stefan problem
Phase change problems
XFEM
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3.8
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3.2K
Citations:
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