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The effect of a zwitterionic and cationic surfactant in turbulent flows
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SYSNO ASEP 0196151 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název The effect of a zwitterionic and cationic surfactant in turbulent flows Tvůrce(i) Myška, Jiří (UH-J)
Chára, Zdeněk (UH-J) SAI, ORCID, RIDZdroj.dok. Experiments in Fluids. - : Springer - ISSN 0723-4864
Roč. 30, č. 2 (2001), s. 229-236Poč.str. 8 s. Jazyk dok. eng - angličtina Země vyd. DE - Německo Klíč. slova turbulent flows ; zwitterionic surfactants ; cationic surfactants Vědní obor RIV BK - Mechanika tekutin CEZ AV0Z2060917 - UH-J UT WOS 000166914600012 EID SCOPUS 0035243209 DOI 10.1007/s003480000160 Anotace 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. Pracoviště Ústav pro hydrodynamiku Kontakt Soňa Hnilicová, hnilicova@ih.cas.cz, Tel.: 233 109 003 Rok sběru 2002
Počet záznamů: 1