Hindered Settling of Fiber Particles in Viscous Fluids
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F22%3A00360528" target="_blank" >RIV/68407700:21220/22:00360528 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21610/22:00360528
Result on the web
<a href="https://doi.org/10.3390/pr10091701" target="_blank" >https://doi.org/10.3390/pr10091701</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/pr10091701" target="_blank" >10.3390/pr10091701</a>
Alternative languages
Result language
angličtina
Original language name
Hindered Settling of Fiber Particles in Viscous Fluids
Original language description
In the current literature, information can mainly be found about free and hindered settling of isometric particles in Newtonian and non-Newtonian fluids. These conclusions cannot be used to describe the sedimentation of non-isometric particle in non-Newtonian fluids. For this reason, we have carried out systematic experiments and calculated the correlation of the hindered settling velocity of a cloud of non-isometric particles in high-viscosity and pseudoplastic liquid. The experiments were performed in transparent model fluids, namely, glycerine (a Newtonian fluid) and an aqueous solution of carboxylmethylcelulose CMC (a non-Newtonian pseudo-plastic liquid). These fluids have similar rheological properties, for example, the fresh fine-grained cementitious composites HPC/UHPC. The experiments were carried out with steel fibers with a ratio of d/l = 0.3/20. The settling velocity was determined for fiber volumes from 1% to 5%. While it is known from previous studies that for spherical particles the hindered settling velocity is proportional to the porosity of a suspension cloud on exponent 4.8, which was confirmed by our verification experiment, for the studied fiber particles it is proportional to the porosity on exponent 22.1. This great increase in the exponent is an effect of both the shape of the particles and, in particular, a mutual influence that arises from their interweaving and connection in the suspension.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20402 - Chemical process engineering
Result continuities
Project
<a href="/en/project/GA21-24070S" target="_blank" >GA21-24070S: Model of fibre segregation in dependence on rheological properties of fresh HPC</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Processes
ISSN
2227-9717
e-ISSN
2227-9717
Volume of the periodical
10
Issue of the periodical within the volume
9
Country of publishing house
CH - SWITZERLAND
Number of pages
12
Pages from-to
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UT code for WoS article
000856728700001
EID of the result in the Scopus database
2-s2.0-85138688043