Laminar and turbulent transition of non-newtonian slurries

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985874%3A_____%2F11%3A00361108" target="_blank" >RIV/67985874:_____/11:00361108 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Laminar and turbulent transition of non-newtonian slurries

Popis výsledku v původním jazyce

The Kaolin and fly ash slurries were measured on the experimental pipeline loop of inner diameter 17.5, 26.8 and 36 mm. An attention was paid to the laminar/turbulent transition, which can be well indicating by pressure fluctuations. At the beginning ofthe laminar/turbulent transition the hydraulic gradient steeply increases with increasing velocity. It is accompanied by the different patterns of the differential pressure fluctuation for the laminar, transitional and turbulent regimes. In the laminar regime the pressure fluctuations are of small amplitude and temporally limited. A high level of instability, eddy formation and pressure fluctuation are characteristic for the transition region, the amplitude of pressure fluctuations increases with increasing slurry velocity. For the turbulent regime the frequency of pressure pulsations becomes higher and due to filtration of the pressure signal the pressure gradient record seems to be relatively smoother.

Název v anglickém jazyce

Laminar and turbulent transition of non-newtonian slurries

Popis výsledku anglicky

The Kaolin and fly ash slurries were measured on the experimental pipeline loop of inner diameter 17.5, 26.8 and 36 mm. An attention was paid to the laminar/turbulent transition, which can be well indicating by pressure fluctuations. At the beginning ofthe laminar/turbulent transition the hydraulic gradient steeply increases with increasing velocity. It is accompanied by the different patterns of the differential pressure fluctuation for the laminar, transitional and turbulent regimes. In the laminar regime the pressure fluctuations are of small amplitude and temporally limited. A high level of instability, eddy formation and pressure fluctuation are characteristic for the transition region, the amplitude of pressure fluctuations increases with increasing slurry velocity. For the turbulent regime the frequency of pressure pulsations becomes higher and due to filtration of the pressure signal the pressure gradient record seems to be relatively smoother.

Druh

D - Stať ve sborníku

CEP obor

BK - Mechanika tekutin

OECD FORD obor

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Projekt

<a href="/cs/project/GAP105%2F10%2F1574" target="_blank" >GAP105/10/1574: Proudění zahuštěných a komplexních suspenzí v uzavřených profilech</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2011

Kód důvěrnosti údajů

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

Název statě ve sborníku

Matematičeskije metody v technike i technologijach MMTT-24

ISBN

978-5-7433-2386-9

ISSN

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e-ISSN

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Počet stran výsledku

5

Strana od-do

16-20

Název nakladatele

Saratovskij gosudarstvennyj techničeskij universitet

Místo vydání

Saratov

Místo konání akce

Kyjev

Datum konání akce

31. 5. 2011

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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