Spinodal Decomposition of Binary Mixtures in Uniform Shear Flow

The spinodal decomposition of binary mixtures in uniform shear flow is studied in the context of the time-dependent Ginzburg-Landau equation, approximated at one-loop order. We show that the structure factor obeys a generalized dynamical scaling with different growth exponents ₗ0ex{0ex}=0ex{0ex}5/4 and ₘ0ex{0ex}=0ex{0ex}1/4 in the flow and in the shear directions, respectively. The excess viscosity after reaching a maximum relaxes to zero as ^-2t^-3/2, being the shear rate. and other observables exhibit log-time periodic oscillations which can be interpreted as due to a growth mechanism where stretching and breakup of domains cyclically occur.