Near wake dynamics around a vibrating airfoil by means of PIV and Oscillation Pattern Decomposition at Reynolds number of 65 000

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F15%3A00444065" target="_blank" >RIV/61388998:_____/15:00444065 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.jfluidstructs.2015.03.011" target="_blank" >http://dx.doi.org/10.1016/j.jfluidstructs.2015.03.011</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jfluidstructs.2015.03.011" target="_blank" >10.1016/j.jfluidstructs.2015.03.011</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Near wake dynamics around a vibrating airfoil by means of PIV and Oscillation Pattern Decomposition at Reynolds number of 65 000

Popis výsledku v původním jazyce

Flow around steady and vibrating airfoil NACA 0012 with a 10 degree angle of attack has been studied experimentally, using a time-resolved PIV technique at Reynolds Number of 65 thousand. In this situation, a strong interaction between the airfoil and the flow-field is typically observed. Dynamics of flow in the airfoil wake has been investigated in details. Besides statistical analysis of the flow field point-by-point in space, we have explored complex spatial dynamics of the flow using the OscillationPattern Decomposition (OPD) method applied on the entire velocity vector field. The flow field spatial dynamics is characterized by the OPD modes of oscillating and non-oscillating character, capturing travelling and pulsating patterns. Topology and frequencies of dynamical modes are to be shown. The unsteady velocity field is affected by both wing vibrations and inherent flow dynamics. Role of the airfoil vibrations in the flow dynamics is demonstrated.

Název v anglickém jazyce

Near wake dynamics around a vibrating airfoil by means of PIV and Oscillation Pattern Decomposition at Reynolds number of 65 000

Popis výsledku anglicky

Flow around steady and vibrating airfoil NACA 0012 with a 10 degree angle of attack has been studied experimentally, using a time-resolved PIV technique at Reynolds Number of 65 thousand. In this situation, a strong interaction between the airfoil and the flow-field is typically observed. Dynamics of flow in the airfoil wake has been investigated in details. Besides statistical analysis of the flow field point-by-point in space, we have explored complex spatial dynamics of the flow using the OscillationPattern Decomposition (OPD) method applied on the entire velocity vector field. The flow field spatial dynamics is characterized by the OPD modes of oscillating and non-oscillating character, capturing travelling and pulsating patterns. Topology and frequencies of dynamical modes are to be shown. The unsteady velocity field is affected by both wing vibrations and inherent flow dynamics. Role of the airfoil vibrations in the flow dynamics is demonstrated.

Druh

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

CEP obor

BK - Mechanika tekutin

OECD FORD obor

—

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

2015

Kód důvěrnosti údajů

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

Název periodika

Journal of Fluids and Structures

ISSN

0889-9746

e-ISSN

—

Svazek periodika

55

Číslo periodika v rámci svazku

May

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

12

Strana od-do

372-383

Kód UT WoS článku

000356645800022

EID výsledku v databázi Scopus

2-s2.0-84929605832