"Praha" . . . . "RIV/67985874:_____/03:11033062!RIV/2004/GA0/A11004/N" . "M\u00EDk, V\u00E1clav" . "Vliv st\u00E1rnut\u00ED micel\u00E1rn\u00EDch aditiv na schopnost sni\u017Eovat tlakov\u00E9 ztr\u00E1ty." . . "Vliv st\u00E1rnut\u00ED micel\u00E1rn\u00EDch aditiv na schopnost sni\u017Eovat tlakov\u00E9 ztr\u00E1ty." . "[F07A8E0E13E3]" . "My\u0161ka, Ji\u0159\u00ED" . "CHISA 2003 : sborn\u00EDk 1." . . "Effect of surfactants ageing on drag reduction."@en . . "2003-10-20+02:00"^^ . . "Srn\u00ED, \u0160umava [CZ]" . "Effect of surfactants ageing on drag reduction."@en . "1"^^ . . . . "633587" . "80-86059-36-7" . . . . . . . "Sni\u017Eov\u00E1n\u00ED t\u0159ec\u00EDch ztr\u00E1t p\u0159i proud\u011Bn\u00ED kapalin je proces p\u0159i kter\u00E9m je mal\u00FDm mno\u017Estv\u00EDm aditiva dosahov\u00E1no podstatn\u00E9ho sn\u00ED\u017Een\u00ED turbulentn\u00EDch ztr\u00E1t. Jako vhodn\u00E1 aditiva se ukazuj\u00ED n\u011Bkter\u00E9 povrchov\u011B aktivn\u00ED l\u00E1tky, naz\u00FDvan\u00E9 t\u00E9\u017E surfaktanty, jejich\u017E molekuly tvo\u0159\u00ED micely vhodn\u00FDch vlastnost\u00ED. Byly studov\u00E1ny \u010Dty\u0159i r\u016Fzn\u00E9 druhy surfaktant\u016F na cirkula\u010Dn\u00ED trase s p\u0159\u00EDmou kruhovou trubkou o pr\u016Fm\u011Bru 10,5 mm v rozsahu Reynoldsov\u00FDch \u010D\u00EDsel 4 000 \u016F 30 000 s c\u00EDlem stanovit vliv jejich st\u00E1\u0159\u00ED, koncentrace i tokov\u00FDch singularit na \u00FA\u010Dinnost sni\u017Eov\u00E1n\u00ED t\u0159ec\u00EDch ztr\u00E1t." . "2"^^ . "0"^^ . "turbulence; drag reduction; surfactants"@en . "0"^^ . "2"^^ . . "P(GA101/03/0585), P(IAA2060204), Z(AV0Z2060917)" . . "Jan Novosad, Procesn\u00ED in\u017Een\u00FDrstv\u00ED" . "X1-X5" . . . "Vliv st\u00E1rnut\u00ED micel\u00E1rn\u00EDch aditiv na schopnost sni\u017Eovat tlakov\u00E9 ztr\u00E1ty."@cs . "RIV/67985874:_____/03:11033062" . "Vliv st\u00E1rnut\u00ED micel\u00E1rn\u00EDch aditiv na schopnost sni\u017Eovat tlakov\u00E9 ztr\u00E1ty."@cs . "Four different surfactants were investigated in a closed hydraulic loop in order to find the influence of age of the solution on drag reducing effectiveness and on decrease of critical shear stress. It shows that ageing of a particular surfactant is dependent on its concentration. Different sensitivity of solutions to flow disturbances indicates an individualism of single surfactants with worm-like micelles."@en .