Anisotropy of Turbulent Flow Behind an Asymmetric Airfoil

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F21%3A00548974" target="_blank" >RIV/61388998:_____/21:00548974 - isvavai.cz</a>

Result on the web

<a href="https://link.springer.com/article/10.1007%2Fs42452-021-04872-2" target="_blank" >https://link.springer.com/article/10.1007%2Fs42452-021-04872-2</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s42452-021-04872-2" target="_blank" >10.1007/s42452-021-04872-2</a>

Result language

angličtina

Original language name

Anisotropy of Turbulent Flow Behind an Asymmetric Airfoil

Original language description

Feature of turbulent flow anisotropy behavior behind an asymmetric NACA 64-618 airfoil investigated in this paper. Experimental studies were performed using a hot-wire anemometery with X-probe at the chord-based Reynolds number 1.7×105. The average ensemble velocity and Reynolds stress components are used to determine the wake topology and anisotropy of turbulence. The obtained data allowed to identify the outside wake region, which is characterized by low instability and a high degree of anisotropy of the turbulent flow. This tendency is observed at different angles incident. Further, to gain better insight into the physics of this phenomenon the structure of turbulence have been evaluated. Integral turbulence length and time scales were estimated by the area of the autocorrelation function of velocity fluctuations. Then, using the second-order structural function, we obtained the dissipation characteristics of the flow. In addition, the features of the energy spectrum in the region with high and low degrees of turbulence anisotropy were analyzed.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20302 - Applied mechanics

Project

<a href="/en/project/TH02020057" target="_blank" >TH02020057: Turbine profile cascades for supersonic flow fields</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2021

Confidentiality

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

Name of the periodical

SN Applied Sciences

ISSN

2523-3963

e-ISSN

—

Volume of the periodical

3

Issue of the periodical within the volume

12

Country of publishing house

CH - SWITZERLAND

Number of pages

16

Pages from-to

885

UT code for WoS article

000722225200004

EID of the result in the Scopus database

2-s2.0-85119879397