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Description
  • Užitím řešiče FLUENT byl zkoumán úplav proudu vzduchu za válcem. Předpokládal se dvoudimenzionální nestacionární proud, který byl laminární a izotermický. Reynoldsovo číslo bylo v rozmezí Re = 30 - 170. Výpočet byl stacionární pro RE = 30 - 60 a pro Re = 60 - 170 se vytvářely periodické víry (Kármánova vírová stezka). Frekvence periodických vírů se kvantifikovala závislostí Strouhalova čísla na Reynoldsově číslu. Numerické výsledky souhlasí velmi dobře s předchozími experimentálními údaji; maximální odchylka numerické simulace a experimentu je 1,2%. (cs)
  • The wake airflow behind a circular cylinder has been investigated using FLUENT solver. The flow is assumed to be two-dimensional, laminar, isothermal, and incompressible. The Reynolds number ranges Re = 30 - 170. The computations give the steady wake flow for Re = 30 - 60 and the periodic vortex shedding (von Kármán vortex street) for Re = 60 - 170. The vortex shedding frequency has been quantified in the term of the Strouhal number - Reynolds number relationship. The present results agree very well with the previous experimental data, the maximum deviations of the simulations and experiments are within 1.2%.
  • The wake airflow behind a circular cylinder has been investigated using FLUENT solver. The flow is assumed to be two-dimensional, laminar, isothermal, and incompressible. The Reynolds number ranges Re = 30 - 170. The computations give the steady wake flow for Re = 30 - 60 and the periodic vortex shedding (von Kármán vortex street) for Re = 60 - 170. The vortex shedding frequency has been quantified in the term of the Strouhal number - Reynolds number relationship. The present results agree very well with the previous experimental data, the maximum deviations of the simulations and experiments are within 1.2%. (en)
Title
  • Numerical Simulation of the von Kármán Vortex Street
  • Numerická simulace Kármánovy vírové stezky (cs)
  • Numerical Simulation of the von Kármán Vortex Street (en)
skos:prefLabel
  • Numerical Simulation of the von Kármán Vortex Street
  • Numerická simulace Kármánovy vírové stezky (cs)
  • Numerical Simulation of the von Kármán Vortex Street (en)
skos:notation
  • RIV/68407700:21220/07:02129383!RIV08-GA0-21220___
http://linked.open.../vavai/riv/strany
  • 173;176
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(GA101/05/2681), P(IAA200760504), Z(AV0Z20760514)
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 438158
http://linked.open...ai/riv/idVysledku
  • RIV/68407700:21220/07:02129383
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • Reynolds number; Strouhal number; boundary condition; free-stream velocity; grid; isothermal flow; kinematic viscosity; laminar; laminar vortex shedding; wake (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...ontrolniKodProRIV
  • [BC3F280F5749]
http://linked.open...v/mistoKonaniAkce
  • Praha
http://linked.open...i/riv/mistoVydani
  • Praha
http://linked.open...i/riv/nazevZdroje
  • Topical Problems of Fluid Mechanics 2007
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...iv/tvurceVysledku
  • Trávníček, Zdeněk
  • Vogel, Jiří
  • Šponiar, David
http://linked.open...vavai/riv/typAkce
http://linked.open.../riv/zahajeniAkce
http://linked.open...n/vavai/riv/zamer
number of pages
http://purl.org/ne...btex#hasPublisher
  • Ústav termomechaniky AV ČR
https://schema.org/isbn
  • 978-80-87012-04-8
http://localhost/t...ganizacniJednotka
  • 21220
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