Stochastic Phase-Field simulations of symmetric alloy solidification
Visualitza/Obre
Cita com:
hdl:2117/19055
Tipus de documentArticle
Data publicació2004-09
Condicions d'accésAccés obert
Llevat que s'hi indiqui el contrari, els
continguts d'aquesta obra estan subjectes a la llicència de Creative Commons
:
Reconeixement-NoComercial-SenseObraDerivada 3.0 Espanya
Abstract
We study initial transient stages in directional solidification by means of a non-variational phase field model with fluctuations. This model applies for the symmetric solidification of dilute binary solutions and does not invoke fluctuation-dissipation theorem to account for the fluctuation statistics. We devote our attention to the transient regime
during which concentration gradients are building up and fluctuations act to destabilize the interface. To this end, we calculate both the temporally dependent growth rate of each mode and the power spectrum of the interface evolving under the effect of fluctuations.
Quantitative agreement is found when comparing the phase-field simulations with
theoretical predictions.
CitacióBenitez, R.; Ramirez de La Piscina, L. Stochastic Phase-Field simulations of symmetric alloy solidification. "Fluctuation and noise letters", Setembre 2004, vol. 4, núm. 3, p. 505-510.
ISSN0219-4775
Versió de l'editorhttp://dx.doi.org/10.1142/S0219477504002063
Fitxers | Descripció | Mida | Format | Visualitza |
---|---|---|---|---|
benitez.pdf | 124,0Kb | Visualitza/Obre |