Buffeting of a flexible fin over a delta wing

C. Lambert, I. Gursul

Research output: Chapter in Book/Report/Conference proceedingConference proceeding

1 Citation (Scopus)

Abstract

Buffeting of a flexible fin due to the leading-edge vortex flow over a delta wing was investigated. Tip acceleration of the fin as well as unsteady wing surface pressure were measured to understand the interaction of the fin with vortex breakdown. There is a strong asymmetry with regard to the effect of fin location on the buffeting response. For outboard fin locations, the buffeting is small, even at high angles of attack when vortex breakdown is well upstream. For inboard fin locations, the largest fin vibrations were found for breakdown locations well upstream of the fin, and when the shear layer of the breakdown region impinges on the fin. Maximum buffeting response occurs when the fin is located near the vortex axis for low angles of attack, but the location of the maximum buffeting shifts to inboard locations as the angle of attack is increased. The results show that single-fin buffeting may be as important as twin-fin buffeting. The effect of fin flexibility is likely to be negligible when the fin buffeting over aircraft becomes important.

Original languageEnglish
Title of host publicationFluid Dynamics and Co-located Conferences
Subtitle of host publication19th AIAA Applied Aerodynamics Conference.
PublisherAmerican Institute of Aeronautics and Astronautics
DOIs
Publication statusPublished - 1 Dec 2001
Externally publishedYes
Event19th AIAA Applied Aerodynamics Conference 2001 - Anaheim, United States
Duration: 11 Jun 200114 Jun 2001

Conference

Conference19th AIAA Applied Aerodynamics Conference 2001
CountryUnited States
CityAnaheim
Period11/06/0114/06/01

Fingerprint

Buffeting
Vortex flow
Angle of attack
Aircraft

ASJC Scopus subject areas

  • Aerospace Engineering
  • Mechanical Engineering

Cite this

Lambert, C., & Gursul, I. (2001). Buffeting of a flexible fin over a delta wing. In Fluid Dynamics and Co-located Conferences : 19th AIAA Applied Aerodynamics Conference. American Institute of Aeronautics and Astronautics. https://doi.org/10.2514/6.2001-2426

Buffeting of a flexible fin over a delta wing. / Lambert, C.; Gursul, I.

Fluid Dynamics and Co-located Conferences : 19th AIAA Applied Aerodynamics Conference.. American Institute of Aeronautics and Astronautics, 2001.

Research output: Chapter in Book/Report/Conference proceedingConference proceeding

Lambert, C & Gursul, I 2001, Buffeting of a flexible fin over a delta wing. in Fluid Dynamics and Co-located Conferences : 19th AIAA Applied Aerodynamics Conference.. American Institute of Aeronautics and Astronautics, 19th AIAA Applied Aerodynamics Conference 2001, Anaheim, United States, 11/06/01. https://doi.org/10.2514/6.2001-2426
Lambert C, Gursul I. Buffeting of a flexible fin over a delta wing. In Fluid Dynamics and Co-located Conferences : 19th AIAA Applied Aerodynamics Conference.. American Institute of Aeronautics and Astronautics. 2001 https://doi.org/10.2514/6.2001-2426
Lambert, C. ; Gursul, I. / Buffeting of a flexible fin over a delta wing. Fluid Dynamics and Co-located Conferences : 19th AIAA Applied Aerodynamics Conference.. American Institute of Aeronautics and Astronautics, 2001.
@inproceedings{c4621229cf6b4a4ca53af220b2e2ddb4,
title = "Buffeting of a flexible fin over a delta wing",
abstract = "Buffeting of a flexible fin due to the leading-edge vortex flow over a delta wing was investigated. Tip acceleration of the fin as well as unsteady wing surface pressure were measured to understand the interaction of the fin with vortex breakdown. There is a strong asymmetry with regard to the effect of fin location on the buffeting response. For outboard fin locations, the buffeting is small, even at high angles of attack when vortex breakdown is well upstream. For inboard fin locations, the largest fin vibrations were found for breakdown locations well upstream of the fin, and when the shear layer of the breakdown region impinges on the fin. Maximum buffeting response occurs when the fin is located near the vortex axis for low angles of attack, but the location of the maximum buffeting shifts to inboard locations as the angle of attack is increased. The results show that single-fin buffeting may be as important as twin-fin buffeting. The effect of fin flexibility is likely to be negligible when the fin buffeting over aircraft becomes important.",
author = "C. Lambert and I. Gursul",
year = "2001",
month = "12",
day = "1",
doi = "10.2514/6.2001-2426",
language = "English",
booktitle = "Fluid Dynamics and Co-located Conferences",
publisher = "American Institute of Aeronautics and Astronautics",

}

TY - GEN

T1 - Buffeting of a flexible fin over a delta wing

AU - Lambert, C.

AU - Gursul, I.

PY - 2001/12/1

Y1 - 2001/12/1

N2 - Buffeting of a flexible fin due to the leading-edge vortex flow over a delta wing was investigated. Tip acceleration of the fin as well as unsteady wing surface pressure were measured to understand the interaction of the fin with vortex breakdown. There is a strong asymmetry with regard to the effect of fin location on the buffeting response. For outboard fin locations, the buffeting is small, even at high angles of attack when vortex breakdown is well upstream. For inboard fin locations, the largest fin vibrations were found for breakdown locations well upstream of the fin, and when the shear layer of the breakdown region impinges on the fin. Maximum buffeting response occurs when the fin is located near the vortex axis for low angles of attack, but the location of the maximum buffeting shifts to inboard locations as the angle of attack is increased. The results show that single-fin buffeting may be as important as twin-fin buffeting. The effect of fin flexibility is likely to be negligible when the fin buffeting over aircraft becomes important.

AB - Buffeting of a flexible fin due to the leading-edge vortex flow over a delta wing was investigated. Tip acceleration of the fin as well as unsteady wing surface pressure were measured to understand the interaction of the fin with vortex breakdown. There is a strong asymmetry with regard to the effect of fin location on the buffeting response. For outboard fin locations, the buffeting is small, even at high angles of attack when vortex breakdown is well upstream. For inboard fin locations, the largest fin vibrations were found for breakdown locations well upstream of the fin, and when the shear layer of the breakdown region impinges on the fin. Maximum buffeting response occurs when the fin is located near the vortex axis for low angles of attack, but the location of the maximum buffeting shifts to inboard locations as the angle of attack is increased. The results show that single-fin buffeting may be as important as twin-fin buffeting. The effect of fin flexibility is likely to be negligible when the fin buffeting over aircraft becomes important.

UR - http://www.scopus.com/inward/record.url?scp=84894426593&partnerID=8YFLogxK

U2 - 10.2514/6.2001-2426

DO - 10.2514/6.2001-2426

M3 - Conference proceeding

BT - Fluid Dynamics and Co-located Conferences

PB - American Institute of Aeronautics and Astronautics

ER -