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  • Annular impinging air jets were investigated experimentally using the techniques of flow visualization, measurement of the stagnation pressure, and the naphthalene sublimation method. The bistability and hysteresis lead to two different alternative flow field patterns (A or B) under identical boundary conditions. The bistability and hysteresis were found only at small Reynolds numbers, and at small annular nozzle slot widths. An extension of the nozzle centerbody promotes the tendency to the hysteretic behavior. An enhancement effect for the area-average heat/mass transfer coefficients for the pattern B over A has been quantified. The highest achieved increase was quite significant 32%.
  • Annular impinging air jets were investigated experimentally using the techniques of flow visualization, measurement of the stagnation pressure, and the naphthalene sublimation method. The bistability and hysteresis lead to two different alternative flow field patterns (A or B) under identical boundary conditions. The bistability and hysteresis were found only at small Reynolds numbers, and at small annular nozzle slot widths. An extension of the nozzle centerbody promotes the tendency to the hysteretic behavior. An enhancement effect for the area-average heat/mass transfer coefficients for the pattern B over A has been quantified. The highest achieved increase was quite significant 32%. (en)
Title
  • Hysteresis in annular impinging jets
  • Hysteresis in annular impinging jets (en)
skos:prefLabel
  • Hysteresis in annular impinging jets
  • Hysteresis in annular impinging jets (en)
skos:notation
  • RIV/61388998:_____/13:00383370!RIV14-GA0-61388998
http://linked.open...avai/predkladatel
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • I, P(GCP101/11/J019), P(IAA200760801), Z(AV0Z20760514)
http://linked.open...iv/cisloPeriodika
  • Januar 2013
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
  • 78575
http://linked.open...ai/riv/idVysledku
  • RIV/61388998:_____/13:00383370
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • impinging jet; bistability; hysteresis (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • US - Spojené státy americké
http://linked.open...ontrolniKodProRIV
  • [C859B52D32D2]
http://linked.open...i/riv/nazevZdroje
  • Experimental Thermal and Fluid Science
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...v/svazekPeriodika
  • 44
http://linked.open...iv/tvurceVysledku
  • Tesař, Václav
  • Trávníček, Zdeněk
http://linked.open...ain/vavai/riv/wos
  • 000316515400058
http://linked.open...n/vavai/riv/zamer
issn
  • 0894-1777
number of pages
http://bibframe.org/vocab/doi
  • 10.1016/j.expthermflusci.2012.08.019
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