Salt fingers at low Rayleigh numbers

R. Krishnamurti, Y. H. Jo, A. Stocchino

Research output: Journal article publicationJournal articleAcademic researchpeer-review

1 Citation (Scopus)


This is a laboratory study of salt fingers at low Rayleigh numbers. We report on the stability boundary in the (R S, R T)-plane (where R S and R T are the salt and heat Rayleigh numbers respectively), the wavenumber of the observed fingers, and the planform. In this low R S, R T range, fingers have width comparable to their height, as predicted by linear stability theory. The planform appears to be close-packed polygonal cells when they are formed on curved profiles of temperature and salinity. However, the planform is distinctly rolls when care is taken to approximate linear profiles.

Original languageEnglish
Pages (from-to)25-37
Number of pages13
JournalJournal of Fluid Mechanics
Publication statusPublished - 10 Feb 2002
Externally publishedYes

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this