Drag reduction of dense fine-grained slurries
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985874%3A_____%2F10%3A00352181" target="_blank" >RIV/67985874:_____/10:00352181 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Drag reduction of dense fine-grained slurries
Original language description
Forces acting in the slurry among particles strongly affect the flow behaviour of highly concentrated fine-grained slurries. The attractive forces initiate a coagulation process, which gives rise to voluminous aggregates where a large amount of water isfixed. A modification of the physical-chemical environment of the slurry by addition of a peptizing agent results in destruction of the aggregates. Water originally fixed in the aggregates is liberated, the viscous friction can play a larger role in theslurry, which is liquefied. To prove these process three different kaolin-water mixtures were tested with an overpressure capillary viscometer, rotational viscometer, and experimental pipeline loop. The effect of two peptizing agents and their concentration was investigated. Even very low concentration of peptizing agent results in a significant reduction in the apparent viscosity and in the yield stress.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BK - Liquid mechanics
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GAP105%2F10%2F1574" target="_blank" >GAP105/10/1574: Flow of concentrated and complex slurries in closed conduits</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2010
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Hydrology and Hydromechanics. Vodohospodársky časopis
ISSN
0042-790X
e-ISSN
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Volume of the periodical
58
Issue of the periodical within the volume
4
Country of publishing house
SK - SLOVAKIA
Number of pages
10
Pages from-to
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UT code for WoS article
000286574200005
EID of the result in the Scopus database
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