Effect of ground on flow characteristics and aerodynamic performance of a non-slender delta wing

Basit Öğe Kaydı
dc.authoridSahin, Besir/0000-0003-0671-0890
dc.authoridKarasu, Ilyas/0000-0003-3138-6236
dc.contributor.authorTumse, Sergen
dc.contributor.authorTasci, Mehmet Oguz
dc.contributor.authorKarasu, Ilyas
dc.contributor.authorSahin, Besir
dc.date.accessioned2025-01-06T17:36:08Z
dc.date.available2025-01-06T17:36:08Z
dc.date.issued2021
dc.description.abstractThe aerodynamic performance and the structure of vortical flow on a delta wing are affected by the influence of the ground in take-off and landing stages. In this context, the effect of the ground on a delta wing having a sweep angle of 40 degrees was investigated by employing Particle Image Velocimetry (PIV), aerodynamic force measuring system and the dye flow visualization technique. Flow characteristics of delta wing were examined under two different angles of attack, alpha = 8 degrees and 11 degrees and variation of the distance between trailing edge of the wing and ground, h normalized with the root chord length, c of the wing. It was observed that the existence of the ground attenuates the magnitude of peak values of primary and secondary vortices due to incomplete development of vortices. The ground effect caused the outboard movement of the leading-edge vortex in a spanwise direction as well as an increase in the size of vortices. Furthermore, the presence of the ground induced a decrease in Strouhal number, St due to the slowing down of vortex formation. Lift and drag coefficient, C-L, and C-D of the delta wing were observed to increase with descending from unbounded flight region into ground effect region. Finally, it was found that C-L/C-D increases by reducing the distance between ground and wing, h/c, and a rise of C-L/C-D is much more effective under the lower angles of attack, alpha. (C) 2020 Elsevier Masson SAS. All rights reserved.
dc.description.sponsorshipScientific Researched Project Office of Cukurova University [FYL-2019-11369]
dc.description.sponsorshipThe authors would like to acknowledge the Scientific Researched Project Office of Cukurova University for their support under contract no: FYL-2019-11369. The authors are grateful to the Mechanical Engineering Department of Nigde Omer Halisdemir University for allowing the use of wind tunnel.
dc.identifier.doi10.1016/j.ast.2020.106475
dc.identifier.issn1270-9638
dc.identifier.issn1626-3219
dc.identifier.scopus2-s2.0-85098771893
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.ast.2020.106475
dc.identifier.urihttps://hdl.handle.net/20.500.14669/1774
dc.identifier.volume110
dc.identifier.wosWOS:000646082500026
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier France-Editions Scientifiques Medicales Elsevier
dc.relation.ispartofAerospace Science and Technology
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241211
dc.subjectAerodynamic coefficients
dc.subjectDelta wing
dc.subjectGround effect
dc.subjectParticle Image Velocimetry (PIV)
dc.subjectVortical flow structure
dc.titleEffect of ground on flow characteristics and aerodynamic performance of a non-slender delta wing
dc.typeArticle

Dosyalar

Koleksiyon

WoS İndeksli Yayınlar Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu