Back extrusion of vocadlo-type fluids

0394842 - ÚH 2014 RIV DE eng J - Článek v odborném periodiku
David, Jiří - Filip, Petr - Kharlamov, Alexander
Back extrusion of vocadlo-type fluids.
Applied Rheology. Roč. 23, č. 4 (2013), č. článku 45366. ISSN 1430-6395. E-ISSN 1617-8106
Grant CEP: GA ČR GA103/09/2066
Institucionální podpora: RVO:67985874
Klíčová slova: viscosity * back extrusion * annular pumping * vocadlo model * Robertson-stiff model
Kód oboru RIV: CD - Makromolekulární chemie
Impakt faktor: 1.592, rok: 2013
http://www.ar.ethz.ch/TMPPDF/23840225602.368/ApplRheol_23_45366.pdf

Back extrusion represents one of the cheapest experimental methods to determine rheological characteristics of studied fluids, and simultaneously minimise their disruption in comparison with conventional rotational rheometers. This method is based on plunging a circular rod into an axisymmetrically located circular cup containing the experimental sample. Formerly this method has, among other uses, been successfully applied to determinations of parameters appearing in power-law, Bingham and Herschel-Bulkley fluids. The aim of this contribution is to present a sufficiently simple user-friendly procedure for determining individual rheological parameters appearing in the Vocadlo model (sometimes called the Robertson-Stiff model) - yield stress, consistency parameter and flow behaviour index.
Trvalý link: http://hdl.handle.net/11104/0223006