Abstract
A method of transforming problems with diffuse interfaces is presented which leads to equations that are easier to compute accurately. Information obtained by internal layer asymptotic analysis is utilized to motivate transformations of the dependent variables. The new evolution equations which result from this change of variables can be solved numerically in a straightforward manner. Numerical experiments indicate that truncation errors can be significantly reduced in such problems, allowing a coarser grid to be used. Applications to several well-known models are presented.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 695-711 |
| Number of pages | 17 |
| Journal | Journal of Computational Physics |
| Volume | 174 |
| Issue number | 2 |
| DOIs | |
| State | Published - Dec 10 2001 |
| Externally published | Yes |
Keywords
- Diffuse interface methods
- Preconditioning
ASJC Scopus subject areas
- Numerical Analysis
- Modeling and Simulation
- Physics and Astronomy (miscellaneous)
- General Physics and Astronomy
- Computer Science Applications
- Computational Mathematics
- Applied Mathematics