Evaluation of Travelling Vortex Speed by Means of Vortex Tracking and Dynamic Mode Decomposition

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F16%3A00309602" target="_blank" >RIV/68407700:21220/16:00309602 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1063/1.4953709" target="_blank" >http://dx.doi.org/10.1063/1.4953709</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/1.4953709" target="_blank" >10.1063/1.4953709</a>

Result language

angličtina

Original language name

Evaluation of Travelling Vortex Speed by Means of Vortex Tracking and Dynamic Mode Decomposition

Original language description

The article deals with the analysis of unsteady periodic flow field related to synthetic jet creation. The analyses are based on the data obtained using ANSYS Fluent solver. Numerical results are validated by hot wire anemometry data measured along the jet centerline. The speed of travelling vortex ring is evaluated by using vortex tracking method and by using dynamic mode decomposition method. Vortex identification is based on residual vorticity which allows identifying regions in the flow field where fluid particles perform the rotational motion. The regime of the synthetic jet with Re = 329 and S =19.7 is chosen. Both the vortex tracking and the dynamic mode decomposition based vortex speed evaluation indicate an increase in the vortex speed close to the orifice and then decrease with maximum reaching almost one and half of orifice centerline velocity. The article contains extended version the article presented at the conference AEaNMiFMaE 2016.

Czech name

—

Czech description

—

Type

D - Article in proceedings

CEP classification

JU - Aeronautics, aerodynamics, aeroplanes

OECD FORD branch

—

Project

<a href="/en/project/GA14-08888S" target="_blank" >GA14-08888S: Control of flow fields by means of fluid oscillation</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2016

Confidentiality

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

Article name in the collection

AIP Conference Proceedings

ISBN

978-0-7354-1402-0

ISSN

0094-243X

e-ISSN

—

Number of pages

6

Pages from-to

—

Publisher name

AIP Publishing, APL, the American Institute of Physics

Place of publication

Melville, NY

Event location

Terchová

Event date

Mar 27, 2016

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

000380817100015