<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>The paper presents application of Particle Image Velocimetry for determination of an airfoil’s drag coefficient in wind tunnel tests. The purpose of the study was to investigate the feasibility of using PIV as an alternative to pressure rake measurements, especially at high angles of attack. The integral momentum concept was applied for determination of fluid drag from experimental low speed wind tunnel data. The drag coefficient was calculated from velocity and pressure rake data for intermediate angles of attack from 5° to 10°. Additionally, the experimental results were compared to panel method results. After validating the procedures at low angles of attack, the drag coefficient was calculated at close to critical angles of attack. The presented study proved that PIV technique can be considered as an attractive alternative for drag coefficient determination of an airfoil.</p>
</abstract>

The paper presents application of Particle Image Velocimetry for determination of an airfoil’s drag coefficient in wind tunnel tests. The purpose of the study was to investigate the feasibility of using PIV as an alternative to pressure rake measurements, especially at high angles of attack. The integral momentum concept was applied for determination of fluid drag from experimental low speed wind tunnel data. The drag coefficient was calculated from velocity and pressure rake data for intermediate angles of attack from 5° to 10°. Additionally, the experimental results were compared to panel method results. After validating the procedures at low angles of attack, the drag coefficient was calculated at close to critical angles of attack. The presented study proved that PIV technique can be considered as an attractive alternative for drag coefficient determination of an airfoil.

Estimation of an Airfoil Drag at High Angles of Attack from PIV Data

Aerodynamics Department, Institute of Aviation

Transactions on Aerospace Research

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

{"article-title":"Estimation of an Airfoil Drag at High Angles of Attack from PIV Data"}

The paper presents application of Particle Image Velocimetry for determination of an airfoil’s drag coefficient in wind tunnel tests. The purpose of the study...

Estimation of an Airfoil Drag at High Angles of Attack from PIV Data

Published Online: Jun 06, 2019

Page range: 28 - 36

DOI: https://doi.org/10.2478/tar-2019-0003

Keywords
fluid drag, wind tunnel tests, high angles of attack, Particle Image Velocimetry

© 2017 Copyright by Lukasiewicz Research Network – Institute of Aviation

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Estimation of an Airfoil Drag at High Angles of Attack from PIV Data

Published Online: Jun 06, 2019

Page range: 28 - 36

DOI: https://doi.org/10.2478/tar-2019-0003

Keywordsfluid drag, wind tunnel tests, high angles of attack, Particle Image Velocimetry

© 2017 Copyright by Lukasiewicz Research Network – Institute of Aviation

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
fluid drag, wind tunnel tests, high angles of attack, Particle Image Velocimetry