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  • Pulsation of impinging jets promises to become a useful way towards achieving the highest possible rate of passive scalar convective transport between fluid and a wall. Author investigated experimentally steady and pulsated impingement by hot-wire anemometer traversing along a radial line at a small height above the impingement wall. The data have shown two conspicuous local maxima of fluctuation intensity. In an attempt to reach understanding of these phenomena, numerical flowfield computations were also made, fitted to the experimental conditions. Despite simplification (isotropic handling of unsteadiness, eddies computed as Reynolds-type phase averages) the synergetic approach (experiment & computation) revealed interesting correlation and resulted in useful interpretations of the old problem of the off-axis extremes – and also brings new views on their behaviour in the pulsating jet case.
  • Pulsation of impinging jets promises to become a useful way towards achieving the highest possible rate of passive scalar convective transport between fluid and a wall. Author investigated experimentally steady and pulsated impingement by hot-wire anemometer traversing along a radial line at a small height above the impingement wall. The data have shown two conspicuous local maxima of fluctuation intensity. In an attempt to reach understanding of these phenomena, numerical flowfield computations were also made, fitted to the experimental conditions. Despite simplification (isotropic handling of unsteadiness, eddies computed as Reynolds-type phase averages) the synergetic approach (experiment & computation) revealed interesting correlation and resulted in useful interpretations of the old problem of the off-axis extremes – and also brings new views on their behaviour in the pulsating jet case. (en)
Title
  • Flow pulsation in the near-wall layer of impinging jets
  • Flow pulsation in the near-wall layer of impinging jets (en)
skos:prefLabel
  • Flow pulsation in the near-wall layer of impinging jets
  • Flow pulsation in the near-wall layer of impinging jets (en)
skos:notation
  • RIV/61388998:_____/13:00392037!RIV14-GA0-61388998
http://linked.open...avai/predkladatel
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • I, P(GA13-23046S), Z(AV0Z20760514)
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
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  • 75322
http://linked.open...ai/riv/idVysledku
  • RIV/61388998:_____/13:00392037
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  • impinging jets; flow pulsation; numerical computation (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...ontrolniKodProRIV
  • [DCC4DF92B278]
http://linked.open...v/mistoKonaniAkce
  • Hradec Králové
http://linked.open...i/riv/mistoVydani
  • Liberec
http://linked.open...i/riv/nazevZdroje
  • EFM12 - EXPERIMENTAL FLUID MECHANICS 2012
http://linked.open...in/vavai/riv/obor
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http://linked.open...iv/tvurceVysledku
  • Tesař, Václav
http://linked.open...vavai/riv/typAkce
http://linked.open...ain/vavai/riv/wos
  • 000319932200129
http://linked.open.../riv/zahajeniAkce
http://linked.open...n/vavai/riv/zamer
issn
  • 2100-014X
number of pages
http://bibframe.org/vocab/doi
  • 10.1051/epjconf/20134501129
http://purl.org/ne...btex#hasPublisher
  • Technická univerzita v Liberci
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  • 978-80-7372-912-7
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