Formation of the "superconducting" core in turbulent thermal convection

J. J. Niemela; K. R. Sreenivasan

doi:10.1103/PhysRevLett.100.184502

Formation of the "superconducting" core in turbulent thermal convection

Research output: Contribution to journal › Article › peer-review

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 language	English (US)
Article number	184502
Journal	Physical Review Letters
Volume	100
Issue number	18
DOIs	https://doi.org/10.1103/PhysRevLett.100.184502
State	Published - May 6 2008

ASJC Scopus subject areas

General Physics and Astronomy

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10.1103/PhysRevLett.100.184502

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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.",

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N2 - 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.

AB - 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.

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Formation of the "superconducting" core in turbulent thermal convection

Abstract

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