Double diffusive convection between two parallel plates with different boundary conditions

Yantao Yang, Erwin P. van der Poel, Rodolfo Ostilla-Mónico, Chao Sun, Roberto Verzicco, Siegfried Grossmann, Detlef Lohse

Research output: Contribution to conferencePaperAcademicpeer-review

Abstract

We investigate the double diffusive convection between two parallel plates with either no-slip or free-slip boundary conditions. Direct numerical simulations have been conducted systematically for a series of control parameters. Salt fingers can be observed for both boundary conditions and all parameters explored. Compared to the no-slip case, salt fingers are stronger in the free-slip case, which is accompanied by larger salinity flux and flow velocity. For both boundary conditions, thin boundary regions develop adjacent to the two plates. The salinity flux and the Reynolds number show similar dependences on the control parameter, namely, the Rayleigh number of the salinity field.

Original languageEnglish
Publication statusPublished - 1 Jan 2015
Event15th European Turbulence Conference, ETC 2015 - Delft, Netherlands
Duration: 25 Aug 201528 Aug 2015
Conference number: 15

Conference

Conference15th European Turbulence Conference, ETC 2015
Abbreviated titleETC 2015
CountryNetherlands
CityDelft
Period25/08/1528/08/15

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