Diffuse interface models of solidification with convection
- The thin interface limit aims at minimizing the effects arising from a numerical interface thickness, inherent in diffuse interface models of solidification and microstructure evolution such as the phase field model. While the original formulation of this problem is restricted to transport by diffusion, we consider here the case of melt convection. Using an analysis of the coupled phase field-fluid dynamic equations, we show here that such a thin interface limit does also exist if transport contains both diffusion and convection. This prediction is tested by comparing simulation studies, which make use of the thin-interface condition, with an analytic sharp-interface theory for dendritic tip growth under convection.
| Author: | Amol SubhedarGND, Peter K. GalenkoGND, Fathollah VarnikORCiDGND |
|---|---|
| URN: | urn:nbn:de:hbz:294-95037 |
| DOI: | https://doi.org/10.1140/epjst/e2019-900099-5 |
| Parent Title (English): | European physical journal special topics |
| Subtitle (English): | the choice of a finite interface thickness |
| Publisher: | Springer |
| Place of publication: | Berlin |
| Document Type: | Article |
| Language: | English |
| Date of Publication (online): | 2022/12/13 |
| Date of first Publication: | 2020/02/11 |
| Publishing Institution: | Ruhr-Universität Bochum, Universitätsbibliothek |
| Volume: | 229 |
| First Page: | 447 |
| Last Page: | 452 |
| Note: | Dieser Beitrag ist auf Grund des DEAL-Springer-Vertrages frei zugänglich. |
| Institutes/Facilities: | Interdisciplinary Centre for Advanced Materials Simulation (ICAMS) |
| Dewey Decimal Classification: | Technik, Medizin, angewandte Wissenschaften / Ingenieurwissenschaften, Maschinenbau |
| open_access (DINI-Set): | open_access |
| faculties: | Fakultät für Maschinenbau |
| Licence (English): |  Creative Commons - CC BY 4.0 - Attribution 4.0 International |
