Dynamics of flow in a branching channel

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23210%2F21%3A43966459" target="_blank" >RIV/49777513:23210/21:43966459 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61388998:_____/21:00542730

Výsledek na webu

<a href="https://www.mechanics-industry.org/articles/meca/pdf/2021/01/mi190114.pdf" target="_blank" >https://www.mechanics-industry.org/articles/meca/pdf/2021/01/mi190114.pdf</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 studyis concentrated on clarifying the dynamical behaviour in individual branches. The 11 branches issuing from themain channel perpendicularly, all channels are of rectangular cross-section. First, the time-mean flow-field isshown, then the flow dynamics is investigated using the OPD method. Flow patterns and frequencies areevaluated in three selected branches. The separated flow in branches exhibits highly dynamical behaviour, whichdiffers substantially in the branches close to the inflow, in the main channel middle and close to its end. Thetypical topologies and frequencies of the detected quasi-periodical structures in the channel braches are shown inthe study. Mostly, the flow-fields are populated by trains of vortices with alternating orientation and saddle-likestructures. 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 studyis concentrated on clarifying the dynamical behaviour in individual branches. The 11 branches issuing from themain channel perpendicularly, all channels are of rectangular cross-section. First, the time-mean flow-field isshown, then the flow dynamics is investigated using the OPD method. Flow patterns and frequencies areevaluated in three selected branches. The separated flow in branches exhibits highly dynamical behaviour, whichdiffers substantially in the branches close to the inflow, in the main channel middle and close to its end. Thetypical topologies and frequencies of the detected quasi-periodical structures in the channel braches are shown inthe study. Mostly, the flow-fields are populated by trains of vortices with alternating orientation and saddle-likestructures. The flow-field close to the channel walls affects heat transfer process between the wall and fluid.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20302 - Applied mechanics

Projekt

—

Návaznosti

N - Vyzkumna aktivita podporovana z neverejnych zdroju

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

Mechanics &amp; Industry

ISSN

2257-7777

e-ISSN

2257-7750

Svazek periodika

22

Číslo periodika v rámci svazku

APR 9 2021

Stát vydavatele periodika

FR - Francouzská republika

Počet stran výsledku

14

Strana od-do

1-14

Kód UT WoS článku

000639365400002

EID výsledku v databázi Scopus

2-s2.0-85104189382