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Length scale analysis in wall-bounded turbulent flow by means of Dissipation Elements

Aldudak, Fettah ; Oberlack, Martin :
Length scale analysis in wall-bounded turbulent flow by means of Dissipation Elements.
[Online-Edition: http://stacks.iop.org/1742-6596/318/i=2/a=022001]
In: Journal of Physics: Conference Series, 318 (2) 022001/1-022001/6. ISSN 1742-6588
[Artikel], (2011)

Offizielle URL: http://stacks.iop.org/1742-6596/318/i=2/a=022001

Kurzbeschreibung (Abstract)

The Dissipation Element ( DE ) method is used to analyse the geometric structure of turbulent pattern for several scalar fields in a turbulent plane channel flow obtained by Direct Numerical Simulations ( DNS ) of the Navier-Stokes equations. We show that both the probability density function ( pdf ) and the number of DE exhibit a clear scaling behavior as a function of the wall. Further, a remarkable insensitivity of the pdf is observed with respect to the Reynolds number and the choice of the scalar.

Typ des Eintrags: Artikel
Erschienen: 2011
Autor(en): Aldudak, Fettah ; Oberlack, Martin
Titel: Length scale analysis in wall-bounded turbulent flow by means of Dissipation Elements
Sprache: Englisch
Kurzbeschreibung (Abstract):

The Dissipation Element ( DE ) method is used to analyse the geometric structure of turbulent pattern for several scalar fields in a turbulent plane channel flow obtained by Direct Numerical Simulations ( DNS ) of the Navier-Stokes equations. We show that both the probability density function ( pdf ) and the number of DE exhibit a clear scaling behavior as a function of the wall. Further, a remarkable insensitivity of the pdf is observed with respect to the Reynolds number and the choice of the scalar.

Titel der Zeitschrift, Zeitung oder Schriftenreihe: Journal of Physics: Conference Series
Band: 318
(Heft-)Nummer: 2
Verlag: Institute of Physics
Fachbereich(e)/-gebiet(e): Fachbereich Maschinenbau > Strömungsdynamik
Fachbereich Maschinenbau
Hinterlegungsdatum: 06 Jan 2012 07:22
Offizielle URL: http://stacks.iop.org/1742-6596/318/i=2/a=022001
Zusätzliche Informationen:

13th European Turbulence Conference (ETC13), Warsaw, Poland, 5th - 8th September, 2011

ID-Nummer: 10.1088/1742-6596/318/2/022001
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