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DY: Dynamik und Statistische Physik

DY 7: Fluide

DY 7.5: Talk

Monday, March 17, 1997, 18:00–18:15, R1

The Effect of Shear on Droplets in a Binary Mixture — •Alexander J. Wagner and J.M Yeomans — Theoretical Physics, University of Oxford, 1 Keble rd., GB.

We use a lattice-Boltzmann simulation to examine the effects of shear flow on a equilibrium droplet in a phase separated binary mixture. We find that large drops break up as the shear is increased but small drops dissolve. We also show how the tip-streaming, observed for deformed drops, leads to a state of dynamic equilibrium.