Estimation of three-dimensional aerodynamic damping using CFD

Higgins, R.J. , Barakos, G.N. and Jinks, E. (2020) Estimation of three-dimensional aerodynamic damping using CFD. Aeronautical Journal, 124(1271), pp. 24-43. (doi: 10.1017/aer.2019.135)

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Abstract

Aeroelastic phenomena of stall flutter are the result of the negative aerodynamic damping associated with separated flow. From this basis, an investigation has been conducted to estimate the aerodynamic damping from a time-marching aeroelastic computation. An initial investigation is conducted on the NACA 0012 aerofoil section, before transition to 3D propellers and full aeroelastic calculations. Estimates of aerodynamic damping are presented, with a comparison made between URANS and SAS. Use of a suitable turbulence closure to allow for shedding of flow structures during stall is seen as critical in predicting negative damping estimations. From this investigation, it has been found that the SAS method is able to capture this for both the aerofoil and 3D test cases.

Item Type:Articles
Additional Information:The support provided by DOWTY Propellers is gratefully acknowledged.
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Barakos, Professor George and Higgins, Mr Ross
Authors: Higgins, R.J., Barakos, G.N., and Jinks, E.
College/School:College of Science and Engineering > School of Engineering > Aerospace Sciences
Journal Name:Aeronautical Journal
Publisher:Royal Aeronautical Society
ISSN:0001-9240
ISSN (Online):2059-6464
Published Online:12 November 2019
Copyright Holders:Copyright © Royal Aeronautical Society 2019
First Published:First published in Aeronautical Journal 124(1271):24-43
Publisher Policy:Reproduced in accordance with the publisher copyright policy

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