About: The Crucial Role of Vortical Structure to Jet Swinging Mechanism in a Blind Though Cavity Subjected to a Jet Impingement     Goto   Sponge   NotDistinct   Permalink

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Description
  • I na blind, retcangular, trough-like cavity subjected to a jet impingement, the jetswitching phenomenon has been known for decades. This is caused by the double-Coanda effect. In the reported research, the TR PIV system was used for the investigation of the vortical structure visualized using the Δ- criterion. On the results obtained, several phenomena are observed. First, on the edges of the jet, the Kelvin-Helmholtz instability forms %22large%22 vortices, which are further entrained by the fluid and grow in size. Second, after the impingement on one of the cavity walls, the flow together with the vortices is bent in the direction towards the cavity opening. At the moment, the vortices start to interact with the just- formed vortices on the edge of the impinging jet-a low pressure zone repsonsible for the jet swingint is created. This phenomenon is investigated for two cavity ratios (2:3 and 3:4), three Reynolds numbers (2300, 11200 and 19600) and four impingement angles (0°, 5°, 10° and 15°).
  • I na blind, retcangular, trough-like cavity subjected to a jet impingement, the jetswitching phenomenon has been known for decades. This is caused by the double-Coanda effect. In the reported research, the TR PIV system was used for the investigation of the vortical structure visualized using the Δ- criterion. On the results obtained, several phenomena are observed. First, on the edges of the jet, the Kelvin-Helmholtz instability forms %22large%22 vortices, which are further entrained by the fluid and grow in size. Second, after the impingement on one of the cavity walls, the flow together with the vortices is bent in the direction towards the cavity opening. At the moment, the vortices start to interact with the just- formed vortices on the edge of the impinging jet-a low pressure zone repsonsible for the jet swingint is created. This phenomenon is investigated for two cavity ratios (2:3 and 3:4), three Reynolds numbers (2300, 11200 and 19600) and four impingement angles (0°, 5°, 10° and 15°). (en)
  • V práci je experimentálně zkoumán případ proudění paprsku namířeného do uzavřené dutiny. Dochází k přepínání proudového pole. Experimenty byly provedeny pomocí metody TR-PIV. Je sledováno dynamické chování proudového pole, zejména potom vírové struktury vznikající mechanismem Kelvin-Helmholtzovy nestability. (cs)
Title
  • The Crucial Role of Vortical Structure to Jet Swinging Mechanism in a Blind Though Cavity Subjected to a Jet Impingement
  • Úloha vírových struktur při proudění paprsku v uzavřené dutině (cs)
  • The Crucial Role of Vortical Structure to Jet Swinging Mechanism in a Blind Though Cavity Subjected to a Jet Impingement (en)
skos:prefLabel
  • The Crucial Role of Vortical Structure to Jet Swinging Mechanism in a Blind Though Cavity Subjected to a Jet Impingement
  • Úloha vírových struktur při proudění paprsku v uzavřené dutině (cs)
  • The Crucial Role of Vortical Structure to Jet Swinging Mechanism in a Blind Though Cavity Subjected to a Jet Impingement (en)
skos:notation
  • RIV/61388998:_____/08:00316670!RIV09-AV0-61388998
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(GA101/08/1112), P(IAA2076403), 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
  • 361602
http://linked.open...ai/riv/idVysledku
  • RIV/61388998:_____/08:00316670
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • jet swinging; Coanda effect; shear layer (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...ontrolniKodProRIV
  • [8616B27D4C57]
http://linked.open...v/mistoKonaniAkce
  • Nice
http://linked.open...i/riv/mistoVydani
  • Besançon
http://linked.open...i/riv/nazevZdroje
  • 13th International Symposium on Flow Visualization
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
  • Uruba, Václav
  • Knob, Martin
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
  • University of Franche Comté
https://schema.org/isbn
  • 0-9533991-8-4
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