Verification of Boundary Conditions Applied to Active Flow Circulation Control

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00010669%3A_____%2F19%3AN0000042" target="_blank" >RIV/00010669:_____/19:N0000042 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.mdpi.com/2226-4310/6/3/34" target="_blank" >https://www.mdpi.com/2226-4310/6/3/34</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/aerospace6030034" target="_blank" >10.3390/aerospace6030034</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Verification of Boundary Conditions Applied to Active Flow Circulation Control

Popis výsledku v původním jazyce

Inclusion of Active Flow Control (AFC) into Computational Fluid Dynamics (CFD) simulations is usually highly time-consuming and requires extensive computational resources and effort. In principle, the flow inside of the fluidic AFC actuators should be incorporated into the problem under consideration. However, for many applications, the internal actuator flow is not crucial, and only its effect on the outer flow needs to be resolved. In this study, the unsteady periodic flow inside the Suction and Oscillatory Blowing (SaOB) actuator is analyzed, using two CFD methods of ranging complexity (URANS and hybrid RANS-LES). The results are used for the definition and development of the simplified surface boundary condition for simulating the SaOB flow at the actuator's exit. The developed boundary condition is verified and validated, in the case of a low-speed airfoil with suction applied on the upper (suction) side of the airfoil and oscillatory blowing applied on the lower (pressure) side, close to the trailing edge-a fluidic Gurney flap. Its effect on the circulation is analyzed and compared to the experimental data.

Název v anglickém jazyce

Verification of Boundary Conditions Applied to Active Flow Circulation Control

Popis výsledku anglicky

Inclusion of Active Flow Control (AFC) into Computational Fluid Dynamics (CFD) simulations is usually highly time-consuming and requires extensive computational resources and effort. In principle, the flow inside of the fluidic AFC actuators should be incorporated into the problem under consideration. However, for many applications, the internal actuator flow is not crucial, and only its effect on the outer flow needs to be resolved. In this study, the unsteady periodic flow inside the Suction and Oscillatory Blowing (SaOB) actuator is analyzed, using two CFD methods of ranging complexity (URANS and hybrid RANS-LES). The results are used for the definition and development of the simplified surface boundary condition for simulating the SaOB flow at the actuator's exit. The developed boundary condition is verified and validated, in the case of a low-speed airfoil with suction applied on the upper (suction) side of the airfoil and oscillatory blowing applied on the lower (pressure) side, close to the trailing edge-a fluidic Gurney flap. Its effect on the circulation is analyzed and compared to the experimental data.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20304 - Aerospace engineering

Projekt

—

Návaznosti

R - Projekt Ramcoveho programu EK

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název periodika

Aerospace

ISSN

2226-4310

e-ISSN

—

Svazek periodika

6

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

16

Strana od-do

nestrankovano

Kód UT WoS článku

000464383200001

EID výsledku v databázi Scopus

2-s2.0-85065391325