About: The effect of a zwitterionic and cationic surfactant in turbulent flows.     Goto   Sponge   NotDistinct   Permalink

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  • A zwitterionic and a cationic surfactant were compared concerning their effectiveness in drag reduction. Both reach even lower friction factors than can be determined by the known maximum drag reduction asymptote in polymers. It is shown that both the maximum effectiveness and the range of surfactant activity depend not only on the temperature and concentration of the solution, but also on the length of the direct entering section and on the quality of water. The influence of the particular locality of the flow rate regulation is also notified.
  • A zwitterionic and a cationic surfactant were compared concerning their effectiveness in drag reduction. Both reach even lower friction factors than can be determined by the known maximum drag reduction asymptote in polymers. It is shown that both the maximum effectiveness and the range of surfactant activity depend not only on the temperature and concentration of the solution, but also on the length of the direct entering section and on the quality of water. The influence of the particular locality of the flow rate regulation is also notified. (en)
Title
  • The effect of a zwitterionic and cationic surfactant in turbulent flows.
  • The effect of a zwitterionic and cationic surfactant in turbulent flows. (en)
skos:prefLabel
  • The effect of a zwitterionic and cationic surfactant in turbulent flows.
  • The effect of a zwitterionic and cationic surfactant in turbulent flows. (en)
skos:notation
  • RIV/67985874:_____/01:11013074!RIV/2003/AV0/A11003/N
http://linked.open.../vavai/riv/strany
  • 229;236
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • Z(AV0Z2060917)
http://linked.open...iv/cisloPeriodika
  • 2
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
  • 678576
http://linked.open...ai/riv/idVysledku
  • RIV/67985874:_____/01:11013074
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • turbulent flows; zwitterionic surfactants; cationic surfactants (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • DE - Spolková republika Německo
http://linked.open...ontrolniKodProRIV
  • [0EAD35AA768C]
http://linked.open...i/riv/nazevZdroje
  • Experiments in Fluids
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...ocetUcastnikuAkce
http://linked.open...nichUcastnikuAkce
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 30
http://linked.open...iv/tvurceVysledku
  • Chára, Zdeněk
  • Myška, Jiří
http://linked.open...n/vavai/riv/zamer
issn
  • 0723-4864
number of pages
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