Momentum flux in Rayleigh–Bénard convection II

Hiroshi Shibata

Physica A: Statistical Mechanics and its Applications, 2005, vol. 345, issue 3, 448-456

Abstract: We showed that the turbulent viscosity coefficient defined as the molecular viscosity coefficient diverges in the transition region from soft turbulence to hard turbulence in the Rayleigh–Bénard convection in the last paper (Physica A 333(2004)71). In the present paper, we measure the strength of the divergence in the viscosity coefficient. The strongest point of the divergence is in the middle of the transition region. In addition, we show how the strength of the divergence depends on the temperature difference between two plates.

Keywords: Rayleigh–Bénard convection; Yanagita–Kaneko model; Two-time correlation function; Momentum flux; Turbulent viscosity (search for similar items in EconPapers)
Date: 2005
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:345:y:2005:i:3:p:448-456

DOI: 10.1016/j.physa.2004.07.021

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