Logarithmic mean temperature profiles in Rayleigh-Bénard convection simulations

Erwin P. van der Poel, Rodolfo Ostilla Mónico, Siegfried Grossmann, Detlef Lohse

Research output: Contribution to conferencePaper

Abstract

Recently, logarithmic mean temperature profiles have experimentally and numerically been found in turbulent Rayleigh-Bénard (RB) convection for large Rayleigh numbers beyond ∼ 1010. For very large Ra beyond 1014 these logarithmic profiles have been connected with the shear instability of the boundary layer. Here we offer an alternative interpretation of these profiles which also holds in the regime between 1010 < Ra < 1014 and connects them with plume hotspots.

Original languageEnglish
Publication statusPublished - 1 Jan 2020
Event14th European Turbulence Conference, ETC 2013 - Lyon, France
Duration: 1 Sep 20134 Sep 2013
Conference number: 14

Conference

Conference14th European Turbulence Conference, ETC 2013
Abbreviated titleETC
CountryFrance
CityLyon
Period1/09/134/09/13

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    van der Poel, E. P., Mónico, R. O., Grossmann, S., & Lohse, D. (2020). Logarithmic mean temperature profiles in Rayleigh-Bénard convection simulations. Paper presented at 14th European Turbulence Conference, ETC 2013, Lyon, France.