Dimensional Analysis Parameters of Turbulence in The Wake of a Square Cylinder

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F21%3A00542740" target="_blank" >RIV/61388998:_____/21:00542740 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/49777513:23210/21:43961690

Výsledek na webu

<a href="https://aip.scitation.org/doi/epdf/10.1063/5.0041434" target="_blank" >https://aip.scitation.org/doi/epdf/10.1063/5.0041434</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/5.0041434" target="_blank" >10.1063/5.0041434</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Dimensional Analysis Parameters of Turbulence in The Wake of a Square Cylinder

Popis výsledku v původním jazyce

In this article, we show the results of a study of the structure of a turbulent flow behind a square cylinder. Namely, for the series of points that have the highest standard deviation value. During the experiment, we were changing the position of the square cylinder relative to the total flow. Experimental data were obtained using Constant Temperature Anemometry. As a result of the analysis, we obtained graphical distributions of the main parameters of the turbulent flow. They revealed that the maximum value of the Reynolds number based on the Taylor micro-scale is observed exactly at the cylinder angle of 30° and 45°. It was also found that the distribution of the energy dissipation rate, depending on the angle of rotation of the cylinder, has a certain sinusoidal character with local peak values. The results of the analysis also showed that the distribution of values of dissipation scale and dissipation time at some distance from the cylinder has the largest range of their values.

Název v anglickém jazyce

Dimensional Analysis Parameters of Turbulence in The Wake of a Square Cylinder

Popis výsledku anglicky

In this article, we show the results of a study of the structure of a turbulent flow behind a square cylinder. Namely, for the series of points that have the highest standard deviation value. During the experiment, we were changing the position of the square cylinder relative to the total flow. Experimental data were obtained using Constant Temperature Anemometry. As a result of the analysis, we obtained graphical distributions of the main parameters of the turbulent flow. They revealed that the maximum value of the Reynolds number based on the Taylor micro-scale is observed exactly at the cylinder angle of 30° and 45°. It was also found that the distribution of the energy dissipation rate, depending on the angle of rotation of the cylinder, has a certain sinusoidal character with local peak values. The results of the analysis also showed that the distribution of values of dissipation scale and dissipation time at some distance from the cylinder has the largest range of their values.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20302 - Applied mechanics

Projekt

<a href="/cs/project/TH02020057" target="_blank" >TH02020057: Profilové turbínové mříže pro supersonická proudová pole</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název statě ve sborníku

AIP Conference Proceedings

ISBN

978-0-7354-4067-8

ISSN

0094-243X

e-ISSN

1551-7616

Počet stran výsledku

7

Strana od-do

030003

Název nakladatele

American Institute of Physics Inc.

Místo vydání

Melville

Místo konání akce

Plzeň

Datum konání akce

8. 9. 2020

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000668075000007