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Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F06%3A00006135" target="_blank" >RIV/00216275:25310/06:00006135 - 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

Pressure Drop Excess in the Flow of Viscoelastic Fluids through Fixed Beds of Particles

Popis výsledku v původním jazyce

In the flow of viscoelastic polymeric fluids, pressure drop excess was observed due to fluid elasticity in comparison with that predicted for the flow of a purely viscous fluid at the same flow conditions. An unambiguous analysis explaining the reasons of the pressure drop excess has not been proposed yet and the sufficient knowledge for modelling purposes is not available as well. A qualitative explanation is based on the effects of viscoelastic fluid memory and normal stresses of an extensional flow seeing that a fluid element experiences the consecutive expansions and contractions as it traverses the pore space. At the same time, it is usually expected that the pressure drop excess can be evaluated using a Deborah number function. However, the present knowledge of the flow of viscoelastic fluids through fixed beds of particles is inconsistent and the choice of the suitable form of the Deborah number and the Deborah number correction function is an open problem. Particularly, there i

Název v anglickém jazyce

Pressure Drop Excess in the Flow of Viscoelastic Fluids through Fixed Beds of Particles

Popis výsledku anglicky

In the flow of viscoelastic polymeric fluids, pressure drop excess was observed due to fluid elasticity in comparison with that predicted for the flow of a purely viscous fluid at the same flow conditions. An unambiguous analysis explaining the reasons of the pressure drop excess has not been proposed yet and the sufficient knowledge for modelling purposes is not available as well. A qualitative explanation is based on the effects of viscoelastic fluid memory and normal stresses of an extensional flow seeing that a fluid element experiences the consecutive expansions and contractions as it traverses the pore space. At the same time, it is usually expected that the pressure drop excess can be evaluated using a Deborah number function. However, the present knowledge of the flow of viscoelastic fluids through fixed beds of particles is inconsistent and the choice of the suitable form of the Deborah number and the Deborah number correction function is an open problem. Particularly, there i

Druh

D - Stať ve sborníku

CEP obor

CI - Průmyslová chemie a chemické inženýrství

OECD FORD obor

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Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2006

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of the 17th International Congress of Chemical and Process Engineering CHISA

ISBN

80-86059-45-6

ISSN

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e-ISSN

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Počet stran výsledku

13

Strana od-do

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Název nakladatele

Process Engineering Publisher Ing. Jan Novosad

Místo vydání

Praha, Česká republika

Místo konání akce

Praha, Česká republika

Datum konání akce

27. 8. 2006

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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