National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
Možné využití limitních případů axiálního toku mezikružím pro mocninové kapaliny
Filip, Petr ; David, Jiří
The present contribution discusses an applicability of the limiting solutions for an aspect inner-to-outer dimeter ratio and flow behaviour index n of a power-law model in concentric annuli.
K charakterizaci Vočadlova modelu pomocí postupu zpětného vytlačování
Filip, Petr ; David, Jiří ; Pivokonský, Radek
Back extrusion represents one of the cheapest and time-saving experimental methods how to determine rheological characteristics of the fluids studied. This method is based on plunging of a circular rod into an axisymmetrically located circular cup containing the experimental sample. Formerly this method was successfully applied to power-law, Bingham and Herschel-Bulkley fluids. The aim of this contribution is to present a sufficiently simple user-friendly procedure how to determine the individual rheological parameters appearing in the Vočadlo model (sometimes called Robertson-Stiff one) - yield stress, consistency parameter and flow behaviour index.

Interested in being notified about new results for this query?
Subscribe to the RSS feed.