Dynamics of reattachment region behind backward-facing step in a narrow channel

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F14%3A00438140" target="_blank" >RIV/61388998:_____/14:00438140 - isvavai.cz</a>

Výsledek na webu

<a href="http://onlinelibrary.wiley.com/doi/10.1002/pamm.201410305/abstract" target="_blank" >http://onlinelibrary.wiley.com/doi/10.1002/pamm.201410305/abstract</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/pamm.201410305" target="_blank" >10.1002/pamm.201410305</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Dynamics of reattachment region behind backward-facing step in a narrow channel

Popis výsledku v původním jazyce

Reattachment region in the channel flow behind backward-facing step is studied for various Reynolds numbers in the range 7-35 thousands (based on incoming flow velocity and step height). Results of experiments obtained using time resolved PIV method applied on the region close to the channel bottom indicating skin friction are to be presented. Dynamical features of the flow-field are studied in detail using Oscillation Pattern Decomposition method. Several types of low-frequency dynamical structures areshown in this region including spirals and nodes. Typical frequencies connected with this structures behavior are evaluated. Time mean picture of the skin friction distribution on the channel bottom is close to2D structure, while dynamical structure isfully 3D.

Název v anglickém jazyce

Dynamics of reattachment region behind backward-facing step in a narrow channel

Popis výsledku anglicky

Reattachment region in the channel flow behind backward-facing step is studied for various Reynolds numbers in the range 7-35 thousands (based on incoming flow velocity and step height). Results of experiments obtained using time resolved PIV method applied on the region close to the channel bottom indicating skin friction are to be presented. Dynamical features of the flow-field are studied in detail using Oscillation Pattern Decomposition method. Several types of low-frequency dynamical structures areshown in this region including spirals and nodes. Typical frequencies connected with this structures behavior are evaluated. Time mean picture of the skin friction distribution on the channel bottom is close to2D structure, while dynamical structure isfully 3D.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BK - Mechanika tekutin

OECD FORD obor

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Projekt

<a href="/cs/project/GAP101%2F10%2F1230" target="_blank" >GAP101/10/1230: Dynamika sekundárního proudení v kanálech</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název periodika

Proceedings in Applied Mathematics and Mechanics

ISSN

1617-7061

e-ISSN

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Svazek periodika

14

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

2

Strana od-do

641-642

Kód UT WoS článku

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EID výsledku v databázi Scopus

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