Experimental study of effect of stenosis geometry on flow parameters

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F15%3A00232054" target="_blank" >RIV/68407700:21220/15:00232054 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1051/epjconf/20159202105" target="_blank" >http://dx.doi.org/10.1051/epjconf/20159202105</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1051/epjconf/20159202105" target="_blank" >10.1051/epjconf/20159202105</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Experimental study of effect of stenosis geometry on flow parameters

Popis výsledku v původním jazyce

A stenosis is a narrowing in a tubular organ or structure. In medicine, vessel stenosis poses health risks for people. In this work, experimental investigations of pressure loss coefficient for varying stenosis eccentricity and shape were performed. Five models of different geometry were studied; all models were stenosis of 75 % area reduction. The flow conditions approximate physiological flow. The measuring range of Reynolds number was from 130 to 2730, measured values of pressure loss coefficient were from 12 to 20. The steady experimental results indicated that static pressure loss coefficient is affected by the shape of stenosis, but it was affected more significantly by the eccentricity. Visualization experiments have been performed in Polycarbonate models.

Název v anglickém jazyce

Experimental study of effect of stenosis geometry on flow parameters

Popis výsledku anglicky

A stenosis is a narrowing in a tubular organ or structure. In medicine, vessel stenosis poses health risks for people. In this work, experimental investigations of pressure loss coefficient for varying stenosis eccentricity and shape were performed. Five models of different geometry were studied; all models were stenosis of 75 % area reduction. The flow conditions approximate physiological flow. The measuring range of Reynolds number was from 130 to 2730, measured values of pressure loss coefficient were from 12 to 20. The steady experimental results indicated that static pressure loss coefficient is affected by the shape of stenosis, but it was affected more significantly by the eccentricity. Visualization experiments have been performed in Polycarbonate models.

Druh

D - Stať ve sborníku

CEP obor

BK - Mechanika tekutin

OECD FORD obor

—

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název statě ve sborníku

EFM14 - Experimental Fluid Mechanics 2014

ISBN

—

ISSN

2101-6275

e-ISSN

—

Počet stran výsledku

5

Strana od-do

-1

Název nakladatele

Technical University of Liberec

Místo vydání

Liberec

Místo konání akce

Český Krumlov

Datum konání akce

18. 11. 2014

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

000358249900107