One-dimensional modeling of concentration distribution in pipe flow of combined-load slurry

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985874%3A_____%2F14%3A00428308" target="_blank" >RIV/67985874:_____/14:00428308 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.powtec.2014.03.070" target="_blank" >http://dx.doi.org/10.1016/j.powtec.2014.03.070</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.powtec.2014.03.070" target="_blank" >10.1016/j.powtec.2014.03.070</a>

Jazyk výsledku

angličtina

Název v původním jazyce

One-dimensional modeling of concentration distribution in pipe flow of combined-load slurry

Popis výsledku v původním jazyce

A one-dimensional profile of solids concentration ismodeled in a cross section of partially stratified flow of slurry in a pipe. In the flow, a certain proportion of solids is transported as contact load and occupies a sliding bed and a transport layer above the bed. The rest of solid particles is transported as suspended load within and above the transport layer.Amodel based on a vertical distribution of shear stress is proposed to predict a concentration profile in a cross section of such flow. Besides the concentration profile, the model predicts the thickness and velocity of the bed. Furthermore, the model determines a vertical position of the top of the transport layer and a position of the hydrodynamic axis of the flow. Model predictions show a satisfactory match with new experimentally determined profiles collected in slurry flows of four different fractions of glass beads in a 100-mm pipe of our laboratory loop.

Název v anglickém jazyce

One-dimensional modeling of concentration distribution in pipe flow of combined-load slurry

Popis výsledku anglicky

A one-dimensional profile of solids concentration ismodeled in a cross section of partially stratified flow of slurry in a pipe. In the flow, a certain proportion of solids is transported as contact load and occupies a sliding bed and a transport layer above the bed. The rest of solid particles is transported as suspended load within and above the transport layer.Amodel based on a vertical distribution of shear stress is proposed to predict a concentration profile in a cross section of such flow. Besides the concentration profile, the model predicts the thickness and velocity of the bed. Furthermore, the model determines a vertical position of the top of the transport layer and a position of the hydrodynamic axis of the flow. Model predictions show a satisfactory match with new experimentally determined profiles collected in slurry flows of four different fractions of glass beads in a 100-mm pipe of our laboratory loop.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BK - Mechanika tekutin

OECD FORD obor

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Projekt

<a href="/cs/project/GA103%2F09%2F0383" target="_blank" >GA103/09/0383: Vnitřní struktura proudění heterogenních suspenzí</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název periodika

Powder Technology

ISSN

0032-5910

e-ISSN

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Svazek periodika

260

Číslo periodika v rámci svazku

July

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

10

Strana od-do

42-51

Kód UT WoS článku

000336873200007

EID výsledku v databázi Scopus

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