Dynamics of flow in a branching channel

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F21%3A00542730" target="_blank" >RIV/61388998:_____/21:00542730 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/49777513:23210/21:43966459

Výsledek na webu

<a href="https://www.mechanics-industry.org/articles/meca/full_html/2021/01/mi190114/mi190114.html" target="_blank" >https://www.mechanics-industry.org/articles/meca/full_html/2021/01/mi190114/mi190114.html</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1051/meca/2021014" target="_blank" >10.1051/meca/2021014</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Dynamics of flow in a branching channel

Popis výsledku v původním jazyce

Flow in a branched channel is studied experimentally using the PIV technique. The presented study is concentrated on clarifying the dynamical behaviour in individual branches. The 11 branches issuing from the main channel perpendicularly, all channels are of rectangular cross-section. First, the time-mean flow-field is shown, then the flow dynamics is investigated using the OPD method. Flow patterns and frequencies are evaluated in three selected branches. The separated flow in branches exhibits highly dynamical behaviour, which differs substantially in the branches close to the inflow, in the main channel middle and close to its end. The typical topologies and frequencies of the detected quasi-periodical structures in the channel braches are shown in the study. Mostly, the flow-fields are populated by trains of vortices with alternating orientation and saddle-like structures. The flow-field close to the channel walls affects heat transfer process between the wall and fluid.

Název v anglickém jazyce

Dynamics of flow in a branching channel

Popis výsledku anglicky

Flow in a branched channel is studied experimentally using the PIV technique. The presented study is concentrated on clarifying the dynamical behaviour in individual branches. The 11 branches issuing from the main channel perpendicularly, all channels are of rectangular cross-section. First, the time-mean flow-field is shown, then the flow dynamics is investigated using the OPD method. Flow patterns and frequencies are evaluated in three selected branches. The separated flow in branches exhibits highly dynamical behaviour, which differs substantially in the branches close to the inflow, in the main channel middle and close to its end. The typical topologies and frequencies of the detected quasi-periodical structures in the channel braches are shown in the study. Mostly, the flow-fields are populated by trains of vortices with alternating orientation and saddle-like structures. The flow-field close to the channel walls affects heat transfer process between the wall and fluid.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

—

OECD FORD obor

20302 - Applied mechanics

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

2021

Kód důvěrnosti údajů

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

Název periodika

Mechanics & Industry

ISSN

2257-7777

e-ISSN

2257-7750

Svazek periodika

22

Číslo periodika v rámci svazku

April

Stát vydavatele periodika

FR - Francouzská republika

Počet stran výsledku

14

Strana od-do

25

Kód UT WoS článku

000639365400002

EID výsledku v databázi Scopus

2-s2.0-85104189382