Distribution of medium-to-coarse glass beads in slurry pipe flow: evaluation of measured concentration profiles
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985874%3A_____%2F14%3A00420876" target="_blank" >RIV/67985874:_____/14:00420876 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1080/02726351.2013.840706" target="_blank" >http://dx.doi.org/10.1080/02726351.2013.840706</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1080/02726351.2013.840706" target="_blank" >10.1080/02726351.2013.840706</a>
Alternative languages
Result language
angličtina
Original language name
Distribution of medium-to-coarse glass beads in slurry pipe flow: evaluation of measured concentration profiles
Original language description
Concentration distribution of two fractions of glass-bead (ballotini) particles (medium size 0.44 mm, 0.53 mm respectively) in flows of heterogeneous slurry was measured in a laboratory pipe of the internal diameter of 100 mm using a radiometric device. Particles in such flows are supported by both interparticle contacts and turbulent eddies and the solids load must be considered as combined load composed of both contact-, and suspended load. Flows tend to be partially stratified and if high concentrated (mean volumetric concentration of solids higher than approximately 20 per cent) they exhibit a sliding bed. It appears that two most common methods to calculate concentration profiles in settling-slurry flows are not able to handle the sliding bed adequately. A comparison of the test results with the Gillies-Shook model for combined-load flows shows that the modeling approach requires further refinements. An application of the more recent Kaushal-Tomita model based on the turbulent-diffusion concept is inappropriate in high-concentrated slurries composed of medium-to-coarse grains. A simple 1-D model is proposed that takes conditions for an existence of a sliding bed into account and predicts a simplified concentration profile in stratified flows composed of a sliding bed and a transport layer above the bed.
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
10305 - Fluids and plasma physics (including surface physics)
Result continuities
Project
<a href="/en/project/GA103%2F09%2F0383" target="_blank" >GA103/09/0383: Internal structure of settling slurry flows</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Particulate Science and Technology
ISSN
0272-6351
e-ISSN
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Volume of the periodical
32
Issue of the periodical within the volume
2
Country of publishing house
US - UNITED STATES
Number of pages
11
Pages from-to
186-196
UT code for WoS article
000329154100013
EID of the result in the Scopus database
2-s2.0-84891928844