Improving Wind Tunnel “1-cos” Gust Profiles

Balatti, Davide; Khodaparast, Hamed Haddad; Friswell, Michael; Manolesos, Marinos

doi:10.2514/1.c036772

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Improving Wind Tunnel “1-cos” Gust Profiles

Davide Balatti, Hamed Haddad Khodaparast

, Michael Friswell, Marinos Manolesos

Journal of Aircraft, Volume: 59, Issue: 6, Pages: 1514 - 1528

Swansea University Authors: Davide Balatti, Hamed Haddad Khodaparast , Michael Friswell, Marinos Manolesos

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DOI (Published version): 10.2514/1.c036772

Abstract

A vane-type gust generator has been designed and characterized in the Swansea University wind tunnel to enable the validation of the response of aircraft models to gust loads. The experimental results reveal the complexity of the flow between the gust vanes and the aircraft model location. Previous...

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Published in:	Journal of Aircraft
ISSN:	1533-3868
Published:	American Institute of Aeronautics and Astronautics (AIAA) 2022
Online Access:	Check full text
URI:	https://cronfa.swan.ac.uk/Record/cronfa60112
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first_indexed	2022-05-31T11:22:35Z
last_indexed	2023-01-11T14:41:51Z
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spelling	v2 60112 2022-05-31 Improving Wind Tunnel “1-cos” Gust Profiles 4c58ba20bbabfef44b00b143e96b37e1 Davide Balatti Davide Balatti true false f207b17edda9c4c3ea074cbb7555efc1 0000-0002-3721-4980 Hamed Haddad Khodaparast Hamed Haddad Khodaparast true false 5894777b8f9c6e64bde3568d68078d40 Michael Friswell Michael Friswell true false 44a3e0d351ccd7a8365d5fc7c50c8778 Marinos Manolesos Marinos Manolesos true false 2022-05-31 AERO A vane-type gust generator has been designed and characterized in the Swansea University wind tunnel to enable the validation of the response of aircraft models to gust loads. The experimental results reveal the complexity of the flow between the gust vanes and the aircraft model location. Previous studies have shown that generating a predetermined gust profile at the desired location in the wind tunnel is a challenging problem. In this work, two techniques to improve the “1-cos” gust have been considered. In the first case, the transfer functions between the vane rotation and the gust produced at the aircraft model location have been identified, and its inverse has been used to calculate the vane rotation. The strong aerodynamics nonlinearity limits the improvements of this method. A parametric study on vane rotation has shown that a more complicated vane rotation function made it possible to obtain “1-cos” gusts at the aircraft model location with a mean square error two orders of magnitude smaller than theinitial case. Creating “1-cos” gusts with similar frequency content as the regulations require will help design more efficient gust load alleviation systems. Journal Article Journal of Aircraft 59 6 1514 1528 American Institute of Aeronautics and Astronautics (AIAA) 1533-3868 Aircraft, gust loads, wind tunnel 1 11 2022 2022-11-01 10.2514/1.c036772 http://dx.doi.org/10.2514/1.c036772 Video presentation via https://doi.org/10.2514/6.2022-2485.vid AIAA SCITECH 2022 Forum January 3-7, 2022, San Diego. COLLEGE NANME Aerospace Engineering COLLEGE CODE AERO Swansea University SU College/Department paid the OA fee UKRI, EP/R006768/1 2023-06-12T15:43:05.8153887 2022-05-31T12:20:49.7272032 Faculty of Science and Engineering School of Engineering and Applied Sciences - Uncategorised Davide Balatti 1 Hamed Haddad Khodaparast 0000-0002-3721-4980 2 Michael Friswell 3 Marinos Manolesos 4 60112__25356__0c9b773af8864dd58da6b45900c1988a.pdf 60112.VOR with added CC-BY. APC paidUSD2400.pdf 2022-10-07T13:10:48.0662213 Output 1748300 application/pdf Version of Record true Distributed under the terms of a Creative Commons Attribution 4.0 CC-BY license. Copyright: The Authors. true eng https://creativecommons.org/licenses/by/4.0/
title	Improving Wind Tunnel “1-cos” Gust Profiles
spellingShingle	Improving Wind Tunnel “1-cos” Gust Profiles Davide Balatti Hamed Haddad Khodaparast Michael Friswell Marinos Manolesos
title_short	Improving Wind Tunnel “1-cos” Gust Profiles
title_full	Improving Wind Tunnel “1-cos” Gust Profiles
title_fullStr	Improving Wind Tunnel “1-cos” Gust Profiles
title_full_unstemmed	Improving Wind Tunnel “1-cos” Gust Profiles
title_sort	Improving Wind Tunnel “1-cos” Gust Profiles
author_id_str_mv	4c58ba20bbabfef44b00b143e96b37e1 f207b17edda9c4c3ea074cbb7555efc1 5894777b8f9c6e64bde3568d68078d40 44a3e0d351ccd7a8365d5fc7c50c8778
author_id_fullname_str_mv	4c58ba20bbabfef44b00b143e96b37e1_*_Davide Balatti f207b17edda9c4c3ea074cbb7555efc1__Hamed Haddad Khodaparast 5894777b8f9c6e64bde3568d68078d40__Michael Friswell 44a3e0d351ccd7a8365d5fc7c50c8778_*_Marinos Manolesos
author	Davide Balatti Hamed Haddad Khodaparast Michael Friswell Marinos Manolesos
author2	Davide Balatti Hamed Haddad Khodaparast Michael Friswell Marinos Manolesos
format	Journal article
container_title	Journal of Aircraft
container_volume	59
container_issue	6
container_start_page	1514
publishDate	2022
institution	Swansea University
issn	1533-3868
doi_str_mv	10.2514/1.c036772
publisher	American Institute of Aeronautics and Astronautics (AIAA)
college_str	Faculty of Science and Engineering
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department_str	School of Engineering and Applied Sciences - Uncategorised{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Uncategorised
url	http://dx.doi.org/10.2514/1.c036772
document_store_str	1
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description	A vane-type gust generator has been designed and characterized in the Swansea University wind tunnel to enable the validation of the response of aircraft models to gust loads. The experimental results reveal the complexity of the flow between the gust vanes and the aircraft model location. Previous studies have shown that generating a predetermined gust profile at the desired location in the wind tunnel is a challenging problem. In this work, two techniques to improve the “1-cos” gust have been considered. In the first case, the transfer functions between the vane rotation and the gust produced at the aircraft model location have been identified, and its inverse has been used to calculate the vane rotation. The strong aerodynamics nonlinearity limits the improvements of this method. A parametric study on vane rotation has shown that a more complicated vane rotation function made it possible to obtain “1-cos” gusts at the aircraft model location with a mean square error two orders of magnitude smaller than theinitial case. Creating “1-cos” gusts with similar frequency content as the regulations require will help design more efficient gust load alleviation systems.
published_date	2022-11-01T15:43:04Z
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score	11.013641

Improving Wind Tunnel “1-cos” Gust Profiles

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