MODELLING TURBULENT TRANSPORT OF SOLIDS IN NON-NEWTONIAN CARRIER FLUIDS APPLICABLE TO TAILINGS DISPOSAL

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

MODELLING TURBULENT TRANSPORT OF SOLIDS IN NON-NEWTONIAN CARRIER FLUIDS APPLICABLE TO TAILINGS DISPOSAL

Popis výsledku v původním jazyce

The increased volume of thickened tailings being sent to tailings storage facilities has created a need to predict what the transport characteristics of these non-Newtonian suspensions are, and what pumping capabilities are required. For very fine particle disposal, where the particle size is less than 20?m e.g. red mud, the material may be considered to behave as a homogeneous fluid and conventional non-Newtonian fluid pipeline design techniques can be successfully employed. However, in many thickenedtailings, the size distribution is much wider than this, often containing sands that are added either before or after thickening. Where the concentration of the rheologically active particles are sufficiently high, such that the suspension may be considered to behave as a paste in laminar flow, then suitable non-Newtonian stratified flow models are used successfully to quantitatively model these flows. When the concentrations of the rheologically active particle are lower, such that the

Název v anglickém jazyce

MODELLING TURBULENT TRANSPORT OF SOLIDS IN NON-NEWTONIAN CARRIER FLUIDS APPLICABLE TO TAILINGS DISPOSAL

Popis výsledku anglicky

The increased volume of thickened tailings being sent to tailings storage facilities has created a need to predict what the transport characteristics of these non-Newtonian suspensions are, and what pumping capabilities are required. For very fine particle disposal, where the particle size is less than 20?m e.g. red mud, the material may be considered to behave as a homogeneous fluid and conventional non-Newtonian fluid pipeline design techniques can be successfully employed. However, in many thickenedtailings, the size distribution is much wider than this, often containing sands that are added either before or after thickening. Where the concentration of the rheologically active particles are sufficiently high, such that the suspension may be considered to behave as a paste in laminar flow, then suitable non-Newtonian stratified flow models are used successfully to quantitatively model these flows. When the concentrations of the rheologically active particle are lower, such that the

Druh

D - Stať ve sborníku

CEP obor

BK - Mechanika tekutin

OECD FORD obor

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Projekt

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Návaznosti

N - Vyzkumna aktivita podporovana z neverejnych zdroju

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of 17th International Conference on Transport And Sedimentation of Solids Particles

ISBN

978-83-927084-8-3

ISSN

0867-7964

e-ISSN

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Počet stran výsledku

12

Strana od-do

229-240

Název nakladatele

Wroclaw University of Environmental And Life Sciences

Místo vydání

Wroclaw

Místo konání akce

Delft

Datum konání akce

22. 9. 2015

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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