Numerical Study of Effect of Stress Tensor for Viscous and Viscoelastic Fluids Flow

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

Numerical Study of Effect of Stress Tensor for Viscous and Viscoelastic Fluids Flow

Popis výsledku v původním jazyce

This work deals with the numerical simulation of viscous and viscoelastic fluids flow. The governing system of equations is based on the system of balance laws for mass and momentum for incompressible laminar fluids. Two models for the stress tensor aretested. For viscous fluids flow Newtonian model is used. By the combination of Newtonian and simple viscoelastic (Maxwell) models the behaviour of the mixture of viscous and viscoelastic fluids can be described. This model is called Oldroyd-B model. Bothpresented models (Newtonian and Oldroyd-B) can be generalized for the numerical modelling of the generalized Newtonian and Oldroyd-B fluids flow. In this case the viscosity is no more constant but is defined as a shear rate dependent viscosity function.One of the most frequently used shear-thinning models is the generalized cross model. Numerical solution of the described models is based on cell-centered finite volume method using explicit Runge? Kutta time integration. Steady state so

Název v anglickém jazyce

Numerical Study of Effect of Stress Tensor for Viscous and Viscoelastic Fluids Flow

Popis výsledku anglicky

This work deals with the numerical simulation of viscous and viscoelastic fluids flow. The governing system of equations is based on the system of balance laws for mass and momentum for incompressible laminar fluids. Two models for the stress tensor aretested. For viscous fluids flow Newtonian model is used. By the combination of Newtonian and simple viscoelastic (Maxwell) models the behaviour of the mixture of viscous and viscoelastic fluids can be described. This model is called Oldroyd-B model. Bothpresented models (Newtonian and Oldroyd-B) can be generalized for the numerical modelling of the generalized Newtonian and Oldroyd-B fluids flow. In this case the viscosity is no more constant but is defined as a shear rate dependent viscosity function.One of the most frequently used shear-thinning models is the generalized cross model. Numerical solution of the described models is based on cell-centered finite volume method using explicit Runge? Kutta time integration. Steady state so

Druh

D - Stať ve sborníku

CEP obor

BA - Obecná matematika

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

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

Rok uplatnění

2013

Kód důvěrnosti údajů

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

Název statě ve sborníku

Numerical Mathematics and Advanced Applications 2011

ISBN

978-3-642-33133-6

ISSN

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e-ISSN

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Počet stran výsledku

10

Strana od-do

529-538

Název nakladatele

Springer

Místo vydání

Heidelberg

Místo konání akce

Leicester

Datum konání akce

5. 9. 2011

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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