Hydrodynamic coarsening of binary fluids

By suitable interpretation of results; from the linear analysis of interface dynamics, it is found that the hydrodynamic growth of the size L of domains that follow spinodal decomposition in fluid mixtures scales with time as L similar to t(alpha), with alpha = 4/7 in the inertial regime. The previously proposed exponent alpha = 2/3 is shown to indicate only the scaling of the oscillatory frequency omega(-2/3) similar to L of the largest structures of the system. The viscous dissipation in the system occurs within a layer of thickness L-d that also follows a power law of the form L-d similar to L-3/4 in the inertial regime. In the viscous regime the growth is Linear in time L similar to t and the dissipative region remains constant L-d similar to L-0.