| dc.creator |
Lehr, Heiner |
|
| dc.creator |
Sagués i Mestre, Francesc |
|
| dc.creator |
Sancho, José M. |
|
| dc.date |
2011-07-07T12:50:49Z |
|
| dc.date |
2011-07-07T12:50:49Z |
|
| dc.date |
1997 |
|
| dc.date.accessioned |
2024-12-16T10:27:18Z |
|
| dc.date.available |
2024-12-16T10:27:18Z |
|
| dc.identifier |
1539-3755 |
|
| dc.identifier |
http://hdl.handle.net/2445/18698 |
|
| dc.identifier |
118395 |
|
| dc.identifier.uri |
http://fima-docencia.ub.edu:8080/xmlui/handle/123456789/22222 |
|
| dc.description |
We consider diffusion of a passive substance C in a phase-separating nonmiscible binary alloy under turbulent mixing. The substance is assumed to have different diffusion coefficients in the pure phases A and B, leading to a spatially and temporarily dependent diffusion ¿coefficient¿ in the diffusion equation plus convective term. In this paper we consider especially the effects of a turbulent flow field coupled to both the Cahn-Hilliard type evolution equation of the medium and the diffusion equation (both, therefore, supplemented by a convective term). It is shown that the formerly observed prolonged anomalous diffusion [H. Lehr, F. Sagués, and J.M. Sancho, Phys. Rev. E 54, 5028 (1996)] is no longer seen if a flow of sufficient intensity is supplied. |
|
| dc.format |
7 p. |
|
| dc.format |
application/pdf |
|
| dc.language |
eng |
|
| dc.publisher |
The American Physical Society |
|
| dc.relation |
Reproducció del document publicat a: http://dx.doi.org/10.1103/PhysRevE.56.1660 |
|
| dc.relation |
Physical Review E, 1997, vol. 56, num. 2, p. 1660-1666 |
|
| dc.relation |
http://dx.doi.org/10.1103/PhysRevE.63.051602 |
|
| dc.relation |
http://dx.doi.org/10.1103/PhysRevE.63.051602 |
|
| dc.rights |
(c) The American Physical Society, 1997 |
|
| dc.rights |
info:eu-repo/semantics/openAccess |
|
| dc.source |
Articles publicats en revistes (Física Quàntica i Astrofísica) |
|
| dc.subject |
Dinàmica de fluids |
|
| dc.subject |
Equacions d'estat |
|
| dc.subject |
Equilibri químic |
|
| dc.subject |
Regla de les fases i equilibri |
|
| dc.subject |
Fluid dynamics |
|
| dc.subject |
Equations of state |
|
| dc.subject |
Chemical equilibrium |
|
| dc.subject |
Phase rule and equilibrium |
|
| dc.title |
Diffusion in spatially and temporarily inhomogeneous media: Effects of turbulent mixing |
|
| dc.type |
info:eu-repo/semantics/article |
|
| dc.type |
info:eu-repo/semantics/publishedVersion |
|