Show/Hide Menu
Hide/Show Apps
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Open Science Policy
Open Science Policy
Communities & Collections
Communities & Collections
Help
Help
Frequently Asked Questions
Frequently Asked Questions
Guides
Guides
Thesis submission
Thesis submission
MS without thesis term project submission
MS without thesis term project submission
Publication submission with DOI
Publication submission with DOI
Publication submission
Publication submission
Supporting Information
Supporting Information
General Information
General Information
Copyright, Embargo and License
Copyright, Embargo and License
Contact us
Contact us
Effect of thickness-to-chord ratio on flow structure of nonslender delta wing
Date
2018-11-18
Author
Gülsaçan, Burak
Ghazijahani, Mohammad Sharifi
Şencan, Gizem
Yavuz, Mehmet Metin
Metadata
Show full item record
Item Usage Stats
50
views
0
downloads
Cite This
The effects of thickness-to-chord (t/C) ratio on flow structures of nonslender delta wings with sweep angles of 35 and 45 degrees are characterized in a low-speed wind tunnel using velocity, pressure, and force measurements. The delta wings with t/C ratios varying from 2 % to 19 % are tested at broad ranges of attack angles and Reynolds numbers. The results indicate that the effect of t/C ratio on flow structure is quite substantial. Considering the low angles of attack where the wings experience leading edge vortex structure, the strength of the vortex structure increases as the t/C ratio increases. However, the wing with lowest t/C ratio has pronounced surface separation at significantly higher angle of attack compared to the wing with highest t/C ratio, which indicates that lowest t/C ratio wing might be more resistive to the stall condition. These results are well supported by the force measurements such that high t/C ratio induces higher lift coefficient, CL, at low attack angles, whereas maximum CL values that can be reached are significantly higher and appears at significantly higher angle of attack for low t/C ratio wings. Considering the CL/CD ratio, increase in t/C ratio induces remarkable drop in CL/CD values.
URI
https://hdl.handle.net/11511/76141
https://meetings.aps.org/Meeting/DFD18/Session/G16.6
Conference Name
71st Annual Meeting of the APS Division of Fluid Dynamics, (November 18–20, 2018)
Collections
Department of Mechanical Engineering, Conference / Seminar
Suggestions
OpenMETU
Core
Effect of ground on aerodynamics and longitudinal static stability of a non-slender delta wing
Koçak, Göktuğ; Yavuz, Mehmet Metin (2022-11-01)
© 2022 Elsevier Masson SASIn this paper, the effect of ground on aerodynamics and longitudinal static stability of a non-slender delta wing with sweep angle of 45 degree and thickness-to-chord ratio (t/c) of 5.9% was characterized at Reynolds number of 9×104 in a low-speed wind tunnel using force and pressure measurements. The measurements were conducted for angles of attack varying between 0≤α≤30 degrees and non-dimensional heights between 3%≤h/c≤107% and height stability of the wing based on aerodynamic c...
Effect of Thickness-to-Chord Ratio on Flow Structure of a Low Swept Delta Wing
Gulsacan, Burak; Sencan, Gizem; Yavuz, Mehmet Metin (American Institute of Aeronautics and Astronautics (AIAA), 2018-12-01)
The effect of thickness-to-chord (t/C) ratio on flow structure of a delta wing with sweep angle of 35 deg is characterized in a low-speed wind tunnel using laser-illuminated smoke visualization, particle image velocimetry, and surface pressure measurements. Four different t/C ratios varying from 4.75 to 19% are tested at angles of attack, 4, 6, 8, and 10 deg, for Reynolds numbers Re =1 x 10(4) and 3.5 x 10(4). The results indicate that the effect of thicknessto-chord ratio on flow structure is quite substan...
Effect of thickness-to-chord ratio on aerodynamics of non-slender delta wing
Ghazijahani, Mohammad Sharifi; Yavuz, Mehmet Metin (2019-05-01)
The effect of thickness-to-chord (t/C) ratio on aerodynamics of a non-slender delta wing with sweep angle of 45 degree is characterized in a low-speed wind tunnel using laser illuminated smoke visualization, surface pressure measurements, particle image velocimetry, and force measurements. The delta wings of t/C ratios varying from 2% to 15% with 45 degree windward beveled leading edges are tested. The results indicate that the effect of t/C ratio on flow structure is quite substantial. Considering the low ...
EFFECT OF VERTICAL TRANSLATION ON UNSTEADYAERODYNAMICS OF A HOVERING AIRFOIL
Gunaydınoglu, Erkan; Kurtuluş, Dilek Funda (2010-06-17)
In this study, the unsteady aerodynamics of SD7003 airfoil undergoing “figure-of-eight” motions with vertical translation amplitudes of 0c (normal hover), 0.5c and 1c is investigated numerically. The forces and vortex fields are compared at the same Reynolds number that is defined with respect to the maximum absolute velocity. Also the effect of the reduced frequency is investigated and it is found that in the meantime, decreasing reduced frequency and increasing Reynolds number does not alter the general f...
EFFECT OF VERTICAL SEPARATION DISTANCE ON LAMINAR NATURAL CONVECTIVE HEAT-TRANSFER OVER 2 VERTICALLY SPACED EQUITEMPERATURE HORIZONTAL CYLINDERS
Yüncü, Hafit; BATTA, A (Springer Science and Business Media LLC, 1994-04-01)
A numerical study of laminar natural convective heat transfer in air from a pair of equi-temperature horizontal cylinders placed one above the other in a vertical plane was carried out. Prime attention was focused on how heat transfer characteristics of the upper cylinder are affected by center-to-center separation distance between two cylinders (CCD). The study was limited to Rayleigh number ranging from 2 x 10(4) to 2 x 10(5) . The vertical center-to-center separation distance between the cylinders was va...
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
B. Gülsaçan, M. S. Ghazijahani, G. Şencan, and M. M. Yavuz, “Effect of thickness-to-chord ratio on flow structure of nonslender delta wing,” presented at the 71st Annual Meeting of the APS Division of Fluid Dynamics, (November 18–20, 2018), Atlanta, Georgia, USA, 2018, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/76141.