Onset of traveling waves in isothermal double diffusive convection

A. A. Predtechensky, W. D. McCormick, J. B. Swift, Z. Noszticzius, Harry L. Swinney

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Abstract

Experiments on double diffusive convection sustained by imposed vertical concentration gradients have been conducted in a novel thin isothermal parallelepiped cell. The measured critical Rayleigh number and the frequency of traveling waves are in reasonable accord with a stability analysis that predicts a tricritical condition all along the instability boundary. Visualization of the pattern from the side reveals that the asymptotic state immediately above the onset of instability consists of packets of traveling finite amplitude plumes.

Original languageEnglish
Pages (from-to)218-221
Number of pages4
JournalPhysical review letters
Volume72
Issue number2
DOIs
Publication statusPublished - Jan 1 1994

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Predtechensky, A. A., McCormick, W. D., Swift, J. B., Noszticzius, Z., & Swinney, H. L. (1994). Onset of traveling waves in isothermal double diffusive convection. Physical review letters, 72(2), 218-221. https://doi.org/10.1103/PhysRevLett.72.218