We investigate the well-posedness of a phase-"eld model for the isothermal solidi"cation of a binary alloy due to Warren}Boettinger [12]. Existence of weak solution as well as regularity and uniqueness results are established under Lipschitz and boundedness assumptions for the non-linearities. A max
Local existence of solutions of a three phase-field model for solidification
✍ Scribed by Bianca Morelli Calsavara Caretta; José Luiz Boldrini
- Publisher
- John Wiley and Sons
- Year
- 2009
- Tongue
- English
- Weight
- 222 KB
- Volume
- 32
- Category
- Article
- ISSN
- 0170-4214
- DOI
- 10.1002/mma.1094
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
In this article we discuss the local existence and uniqueness of solutions of a system of parabolic differential partial equations modeling the process of solidification/melting of a certain kind of alloy. This model governs the evolution of the temperature field, as well as the evolution of three phase‐field functions; the first two describe two different possible solid crystallization states and the last one describes the liquid state. Copyright © 2008 John Wiley & Sons, Ltd.
📜 SIMILAR VOLUMES
## Abstract We consider an anisotropic phase‐field model for the isothermal solidification of a binary alloy due to Warren–Boettinger ( __Acta. Metall. Mater__. 1995; **43**(2):689). Existence of weak solutions is established under a certain convexity condition on the strongly non‐linear second‐ord
## Abstract We prove the existence of __weak solutions__ for a 3D phase change model introduced by Michel Frémond in (__Non‐smooth Thermomechanics__. Springer: Berlin, 2002) showing, via __a priori__ estimates, the weak sequential stability property in the sense already used by the first author in
## Abstract In this short note, we study a strongly coupled system of partial differential equations which models the dynamics of a two‐predator‐one‐prey ecosystem in which the prey exercises defense switching and the predators collaboratively take advantage of the prey's strategy. We prove the exi
## Abstract The phase‐field method provides a mathematical description for free‐boundary problems associated to physical processes with phase transitions. It postulates the existence of a function, called the phase‐field, whose value identifies the phase at a particular point in space and time. The