Lagrangian Vortex Methods in Turbulent Channel Flows

R. Yokota, K. Fukagata, S. Obi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In our present study, we compare the turbulent statistics obtained from a vortex method calculation with a finite difference calculation for the turbulent channel flow. The present vortex method is a standard vortex particle method, which uses the core spreading method with spatial adaptation [1] as the diffusion scheme. The Reynolds number was Reb = 5600 and the calculation domain was 3δ × 2δ ×3 δ ×, where δ is the channel half width. The mean velocity profile after one wash-out time is shown in Fig. 1(a), while the mean velocity gradient and Reynolds stress after one wash-out time are shown in Fig. 1(b). The results of the vortex method show an excessive production of Reynolds stress in the viscous layer.

Original languageEnglish
Title of host publicationAdvances in Turbulence XII - Proceedings of the 12th EUROMECH European Turbulence Conference, 2009
EditorsBruno Eckhardt
PublisherSpringer Science and Business Media Deutschland GmbH
Pages893
Number of pages1
ISBN (Print)9783642030840
DOIs
Publication statusPublished - 2009
Event12th EUROMECH European Turbulence Conference, ETC12 2009 - Marburg, Germany
Duration: 2009 Sep 72009 Sep 10

Publication series

NameSpringer Proceedings in Physics
Volume132
ISSN (Print)0930-8989
ISSN (Electronic)1867-4941

Conference

Conference12th EUROMECH European Turbulence Conference, ETC12 2009
Country/TerritoryGermany
CityMarburg
Period09/9/709/9/10

Keywords

  • Calculation Domain
  • Reynolds Number
  • Reynolds Stress
  • Turbulent Statistic
  • Velocity Gradient

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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