| Issue |
EPL
Volume 91, Number 3, August 2010
|
|
|---|---|---|
| Article Number | 36003 | |
| Number of page(s) | 6 | |
| Section | Condensed Matter: Structural, Mechanical and Thermal Properties | |
| DOI | https://doi.org/10.1209/0295-5075/91/36003 | |
| Published online | 31 August 2010 | |
A reactive-flow model of phase separation in fluid binary mixtures with continuously ramped temperature
Max Planck Institute for Dynamics and Selforganization - Bunsenstr. 10, 37073 Göttingen, Germany, EU
Received:
29
March
2010
Accepted:
30
July
2010
We suggest to revisit the phase separation of binary mixtures subjected to a sustained change of temperature from the point of view of reactive flows. Exploiting this new perspective, we describe the demixing dynamics by a spatial model of advection-reaction-diffusion completed with nucleation and coaguation of droplets. In this approach several features of the dynamics —in particular an oscillatory variation of the droplet density— become numerically and analytically accessible. Hence, this model helps to clarify why the oscillation frequency is hardly affected by the flow.
PACS: 64.70.Ja – Specific phase transitions: Liquid-liquid transitions / 05.45.-a – Nonlinear dynamics and chaos / 47.70.Fw – Chemically reactive flows
© EPLA, 2010
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