Turbulent suppression of spinodal decomposition

D. J. Pine, N. Easwar, J. V. Maher, W. I. Goldburg

Research output: Contribution to journalArticlepeer-review

Abstract

Light scattering experiments reveal a strong suppression of phase separation near the critical point of a vigorously stirred binary liquid mixture. For stirring Reynolds numbers R ranging from 6.0 × 103 to 4.5 × 103, the apparent critical temperature is depressed by 1 mK to 50 mK. This temperature depression Tc can be fitted to a power law TR where 2. The magnitude of Tc is consistent with simple models which attribute the effect to the suppression of composition fluctuations by shear; however, these models predict 0.80 in contrast to the observed value of 2. Below the apparent critical temperature the turbidity changes significantly throughout a temperature range of tens of millikelvin following a power law (Tc-T) where increases from 1 to 6 as R is increased.

Original languageEnglish (US)
Pages (from-to)308-313
Number of pages6
JournalPhysical Review A
Volume29
Issue number1
DOIs
StatePublished - 1984

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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