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Flow, Turbulence and Combustion
Erschienen in: Flow, Turbulence and Combustion 4/2016

18.08.2016

Transport Mechanism of Interface Turbulence over Porous and Rough Walls

verfasst von: Yusuke Kuwata, Kazuhiko Suga

Erschienen in: Flow, Turbulence and Combustion | Ausgabe 4/2016

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Abstract

To understand turbulent transport mechanisms of interface turbulence over porous and rough walls, statistical analyses using direct numerical simulation (DNS) data are carried out at a bulk Reynolds number of 3000. The presently considered porous wall, whose porosity is 0.71, consists of interconnected staggered cube arrays and the rough wall has the same surface structure. Through quadrant and budget term analyses, the transport mechanisms of the plane averaged Reynolds stress are investigated and mutual dependency between turbulence and dispersion is elucidated. Moreover, the influence of the Kelvin-Helmholtz instability on turbulent transport is clarified.
Vorheriger Artikel Modelling the Plasma-actuator-related Turbulence Production in RANS Closures by Reference to Complementary Experimental Investigations
Nächster Artikel Gravity Effects on Fiber Dynamics in Wall Turbulence

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Metadaten
Titel
Transport Mechanism of Interface Turbulence over Porous and Rough Walls
verfasst von
Yusuke Kuwata
Kazuhiko Suga
Publikationsdatum
18.08.2016
Verlag
Springer Netherlands
Erschienen in
Flow, Turbulence and Combustion / Ausgabe 4/2016
Print ISSN: 1386-6184
Elektronische ISSN: 1573-1987
DOI
https://doi.org/10.1007/s10494-016-9759-9

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