PHYSICAL AND MATHEMATICAL MODELING OF SOLID-LIQUID FLOW AT HIGH BED SHEAR IN STEEP FLUME

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F15%3A00232327" target="_blank" >RIV/68407700:21110/15:00232327 - 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

PHYSICAL AND MATHEMATICAL MODELING OF SOLID-LIQUID FLOW AT HIGH BED SHEAR IN STEEP FLUME

Popis výsledku v původním jazyce

The paper discusses new results of our experimental- and mathematical modeling of sediment-laden open-channel flows in the upper plane bed regime associated with intense transport of sediment. Our recent studies showed that bed-load transport and bed friction are interrelated and classical formulae for bed friction (Nikuradse formula) and bed-load transport (MeyerPeter and Muller formula) need to be modified to account for the intense transport of sediment. The new results of our laboratory experimentsin a tilting flume are presented and analyzed for different sediment fractions. The analysis is focused on the effect of solids density and size on the solid-liquid flow characteristics as the solids flow rate, flow depth, and bed slope for certain flowrate of water in a channel of given geometry. The experimental results are compared with outputs of our mathematical model simulating the observed phenomena. The simple 1-D model combines hydrodynamic- and sediment-transport equations and

Název v anglickém jazyce

PHYSICAL AND MATHEMATICAL MODELING OF SOLID-LIQUID FLOW AT HIGH BED SHEAR IN STEEP FLUME

Popis výsledku anglicky

The paper discusses new results of our experimental- and mathematical modeling of sediment-laden open-channel flows in the upper plane bed regime associated with intense transport of sediment. Our recent studies showed that bed-load transport and bed friction are interrelated and classical formulae for bed friction (Nikuradse formula) and bed-load transport (MeyerPeter and Muller formula) need to be modified to account for the intense transport of sediment. The new results of our laboratory experimentsin a tilting flume are presented and analyzed for different sediment fractions. The analysis is focused on the effect of solids density and size on the solid-liquid flow characteristics as the solids flow rate, flow depth, and bed slope for certain flowrate of water in a channel of given geometry. The experimental results are compared with outputs of our mathematical model simulating the observed phenomena. The simple 1-D model combines hydrodynamic- and sediment-transport equations and

Druh

D - Stať ve sborníku

CEP obor

BK - Mechanika tekutin

OECD FORD obor

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Projekt

<a href="/cs/project/GAP105%2F12%2F1082" target="_blank" >GAP105/12/1082: Modelování intenzivního chodu splavenin za povodňových průtoků</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

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 ASME-JSME-KSME 2015 Joint Fluids Engineering Conference

ISBN

978-0-7918-5721-2

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

2069-2074

Název nakladatele

ASME

Místo vydání

New York

Místo konání akce

Seoul

Datum konání akce

26. 7. 2015

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000369566100077