Results 11 to 20 of about 789,979 (292)

Study on Effect of Petit Deltas at the Leading Edge of a Main Delta Wing on the Wing Characteristics

open access: yesJournal of Fluid Science and Technology, 2011
A delta wing with a sawtooth leading edge has an ability to improve its aerodynamic performance, which was suggested and confirmed by the authors' previous study [1].
Hiromitsu KAWAZOE   +4 more
doaj   +3 more sources

Dye visualization of a yawed slender delta wing

open access: yesJournal of Thermal Engineering, 2015
In the present experimental study, effects of yaw angle, β on the flow structure at high angles of attack, α with 70° sweep angle, Λ were investigated using the dye visualization technique. In the case of zero yaw angle, β a pair of leading edge vortices
İlyas KARASU
doaj   +3 more sources

Flow Behavior in Side-View Plane of Pitching Delta Wing [PDF]

open access: yesEPJ Web of Conferences, 2018
In the present investigation, a delta wing which has 70° sweep angle, Λ was oscillated on its midcord according to the equation of α(t)=αm+α0sin(ωet). This study focused on understanding the effect of pitching and characterizing the interaction of vortex
Pektas Mehmet Can   +4 more
doaj   +2 more sources

Leading-edge vortices over swept-back wings with varying sweep geometries [PDF]

open access: yesRoyal Society Open Science, 2019
Micro air vehicles are used in a myriad of applications, such as transportation and surveying. Their performance can be improved through the study of wing designs and lift generation techniques including leading-edge vortices (LEVs).
William B. Lambert   +3 more
doaj   +1 more source

Optimal design of Vertical-Taking-Off-and-Landing UAV wing using multilevel approach

open access: yesInternational Journal for Simulation and Multidisciplinary Design Optimization, 2020
In order to overcome the propre disadvantages of FW(Fixed-Wing) and VTOL(Vertical-Taking-Off-and-Landing) UAV (Unmanned Aerial Vehicle) and extend its application, the hybrid drone is invested more in recent years by researchers and several ...
Yue Hao   +4 more
doaj   +1 more source

Unsteady aerodynamics of nonslender delta wings [PDF]

open access: yesProgress in Aerospace Sciences, 2005
Unsteady aerodynamics of nonslender delta wings, covering topics of shear layer instabilities, structure of nonslender vortices, breakdown, maneuvering wings, and fluid/structure interactions, are reviewed in this paper. Vortical flows develop at very low angles of attack, and form close to the wing surface. This results in strong interactions with the
Gursul, I; id_orcid 0000-0001-7866-4817   +2 more
openaire   +2 more sources

Xylosylation of the Notch receptor preserves the balance between its activation by trans-Delta and inhibition by cis-ligands in Drosophila. [PDF]

open access: yesPLoS Genetics, 2017
The Drosophila glucoside xylosyltransferase Shams xylosylates Notch and inhibits Notch signaling in specific contexts including wing vein development. However, the molecular mechanisms underlying context-specificity of the shams phenotype is not known ...
Tom V Lee   +2 more
doaj   +1 more source

Supersonic flow over low aspect-ratio wings [PDF]

open access: yes, 1976
An attempt has been made, by means of exp": rimental work, to consolidate and augment existing knowledge of high-speed flows over delta wings. Particular emphasis .
Richards, I. C.
core   +4 more sources

Drosophila Cyclin G Is a Regulator of the Notch Signalling Pathway during Wing Development. [PDF]

open access: yesPLoS ONE, 2016
Notch signalling regulates a multitude of differentiation processes during Drosophila development. For example, Notch activity is required for proper wing vein differentiation which is hampered in mutants of either the receptor Notch, the ligand Delta or
Anja C Nagel   +3 more
doaj   +1 more source

Piezoelectric energy harvesting from flexible delta wings

open access: yesTheoretical and Applied Mechanics Letters, 2018
: The potential for harvesting energy from a flexible delta wing using a piezoelectric bimorph is experimentally investigated. Different configurations of the proposed harvesting system were tested in a wind tunnel over a broad range of airspeeds.
Jamal S. Alrowaijeh, Muhammad R. Hajj
doaj   +1 more source

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