| dc.creator | Boldrini, JL | |
| dc.creator | Planas, G | |
| dc.date | 2005 | |
| dc.date | JUL | |
| dc.date | 2014-07-30T13:43:09Z | |
| dc.date | 2015-11-26T17:39:08Z | |
| dc.date | 2014-07-30T13:43:09Z | |
| dc.date | 2015-11-26T17:39:08Z | |
| dc.date.accessioned | 2018-03-29T00:20:44Z | |
| dc.date.available | 2018-03-29T00:20:44Z | |
| dc.identifier | Discrete And Continuous Dynamical Systems. Amer Inst Mathematical Sciences, v. 13, n. 2, n. 429, n. 450, 2005. | |
| dc.identifier | 1078-0947 | |
| dc.identifier | WOS:000228933400010 | |
| dc.identifier | http://www.repositorio.unicamp.br/jspui/handle/REPOSIP/53939 | |
| dc.identifier | http://repositorio.unicamp.br/jspui/handle/REPOSIP/53939 | |
| dc.identifier.uri | http://repositorioslatinoamericanos.uchile.cl/handle/2250/1286376 | |
| dc.description | We consider a tridimensional phase-field model for a solidification/melting non-stationary process, which incorporates the physics of binary alloys, thermal properties and fluid motion of non-solidified material. The model is a free-boundary value problem consisting of a highly non-linear parabolic system including a phase-field equation, a heat equation, a concentration equation and a variant of the Navier-Stokes equations modified by a penalization term of Carman-Kozeny type to model the flow in mushy regions and a Boussinesq type term to take into account the effects of the differences in temperature and concentration in the flow. A proof of existence of generalized solutions for the system is given. For this, the problem is firstly approximated and a sequence of approximate solutions is obtained by Leray-Schauder's fixed point theorem. A solution of the original problem is then found by using compactness arguments. | |
| dc.description | 13 | |
| dc.description | 2 | |
| dc.description | 429 | |
| dc.description | 450 | |
| dc.language | en | |
| dc.publisher | Amer Inst Mathematical Sciences | |
| dc.publisher | Springfield | |
| dc.publisher | EUA | |
| dc.relation | Discrete And Continuous Dynamical Systems | |
| dc.relation | Discret. Contin. Dyn. Syst. | |
| dc.rights | aberto | |
| dc.source | Web of Science | |
| dc.subject | phase-field models | |
| dc.subject | phase change | |
| dc.subject | convection | |
| dc.subject | solidification. | |
| dc.subject | Solidification | |
| dc.title | A tridimensional phase-field model with convection for phase change of an alloy | |
| dc.type | Artículos de revistas | |
