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