Effect of pipe inclination on flow behaviour of fine-grained settling slurry

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985874%3A_____%2F19%3A00496739" target="_blank" >RIV/67985874:_____/19:00496739 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1051/epjconf/201921302094" target="_blank" >http://dx.doi.org/10.1051/epjconf/201921302094</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1051/epjconf/201921302094" target="_blank" >10.1051/epjconf/201921302094</a>

Result language

angličtina

Original language name

Effect of pipe inclination on flow behaviour of fine-grained settling slurry

Original language description

The effect of flow parameters of fine-grained settling slurry on the pressure drop-velocity relationship, deposition limit velocity and local concentration distribution was studied in an experimental pipe loop of inner diameter D = 100 mm with inclinable pipe sections for pipe inclination ranging from – 45° to +45°. The slurry consisted from water and narrow particle size distribution glass beads of mean diameter d50 = 0.18 mm. The concentration distribution was studied with application of a gamma-ray densitometry. The deposition velocity was defined as the flow velocity at which stationary deposit started to be formed at the pipe invert. The study revealed the stratified flow pattern of the studied slurry in inclined pipe sections, for slurry velocities below to the deposition limit sliding or stationary bed were created in ascending pipe sections. For low pipe inclination (alpha < ± 25°) the effect of inclination on local concentration distribution was not significant. Mean transport concentration for descending flow was lower than that for the ascending flow Deposition limit in inclined pipe was slightly lower than that in horizontal pipe. Frictional pressure drops in ascending pipe were higher than that in descending pipe, the difference decreased with increasing velocity and inclination.

Czech name

—

Czech description

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Type

D - Article in proceedings

CEP classification

—

OECD FORD branch

10305 - Fluids and plasma physics (including surface physics)

Project

<a href="/en/project/GA17-14271S" target="_blank" >GA17-14271S: Effect of pipe inclination on deposition-limit velocity and slip velocity of heterogeneous slurries</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2019

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

EPJ Web of Conferences

ISBN

—

ISSN

2100-014X

e-ISSN

—

Number of pages

7

Pages from-to

02094

Publisher name

EDP Sciences

Place of publication

Paris

Event location

Prague

Event date

Nov 13, 2018

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

000504642200095