Formation of the "superconducting" core in turbulent thermal convection

J. J. Niemela, K. R. Sreenivasan

Research output: Contribution to journalArticle

Abstract

A sinusoidal temperature perturbation is superimposed on the bottom plate of a cylindrical convection cell, and its decay is measured at the cell midheight. Rayleigh numbers up to Ra=1013 and aspect ratios1 and 4 are considered. The technique allows a dynamic measurement of the height of the layer interposed between the superconducting core and the boundary. This deduced height is in good agreement with results from recent numerical simulations.

Original languageEnglish (US)
Article number184502
JournalPhysical Review Letters
Volume100
Issue number18
DOIs
StatePublished - May 6 2008

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free convection
convection cells
Rayleigh number
perturbation
decay
cells
simulation
temperature

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Formation of the "superconducting" core in turbulent thermal convection. / Niemela, J. J.; Sreenivasan, K. R.

In: Physical Review Letters, Vol. 100, No. 18, 184502, 06.05.2008.

Research output: Contribution to journalArticle

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