The approach to steady state in microemulsions under shear flow
Autor: | Domenico Suppa |
---|---|
Rok vydání: | 2003 |
Předmět: | |
Zdroj: | Physica A: Statistical Mechanics and its Applications. 320:97-109 |
ISSN: | 0378-4371 |
DOI: | 10.1016/s0378-4371(02)01655-2 |
Popis: | We present an analitical study of the dynamical process of the approach to steady state for a driven diffusive system represented by the microemulsion phase of a ternary mixture. The external applied field is given by a plane Couette shear flow and the problem is studied within the framework of a time-dependent Ginzburg-Landau model. A Fokker-Planck equation for the probability distribution of the concentration fluctuations is developed in a self-consistent one-loop approximation and solved exactly, giving an analytical expression for the dynamic correlation functions of the system. For comparison to experimental work, we also show grey-scale plots of the scattering function at different times during the dynamical process for two different shear rates. Comment: 14 pages, 3 figures. To appear on Physica A |
Databáze: | OpenAIRE |
Externí odkaz: |