Data from: Leading-edge vortices over swept-back wings with varying sweep geometries
Micro air vehicles are used in a myriad of applications, such as transportation and surveying. Their performance can be improved through study of wing designs and lift generation techniques including leading-edge vortices (LEVs). Observation of natural fliers, e.g., birds and bats, has shown that LE...
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ftdryad:oai:v1.datadryad.org:10255/dryad.211143 2023-05-15T14:17:16+02:00 Data from: Leading-edge vortices over swept-back wings with varying sweep geometries Lambert, William B. Stanek, Mathew J. Gurka, Roi Hackett, Erin E. 2019-06-06T06:15:16Z http://hdl.handle.net/10255/dryad.211143 https://doi.org/10.5061/dryad.b7g95d2 unknown doi:10.5061/dryad.b7g95d2/1 doi:10.1098/rsos.190514 doi:10.5061/dryad.b7g95d2 Lambert WB, Stanek MJ, Gurka R, Hackett EE (2019) Leading-edge vortices over swept-back wings with varying sweep geometries. Royal Society Open Science 6(7): 190514. http://hdl.handle.net/10255/dryad.211143 Leading-edge vortex swift swept-back wings particle image velocimetry delta wing Article 2019 ftdryad https://doi.org/10.5061/dryad.b7g95d2 https://doi.org/10.5061/dryad.b7g95d2/1 https://doi.org/10.1098/rsos.190514 2020-01-01T16:25:44Z Micro air vehicles are used in a myriad of applications, such as transportation and surveying. Their performance can be improved through study of wing designs and lift generation techniques including leading-edge vortices (LEVs). Observation of natural fliers, e.g., birds and bats, has shown that LEVs are a major contributor to lift during flapping flight, and the common swift (Apus apus) has been observed to generate LEVs during gliding flight. We hypothesize that non-linear swept-back wings generate a vortex in the leading-edge region, which can augment the lift in a similar manner to linear swept-back wings (i.e., delta wing) during gliding flight. Particle image velocimetry experiments were performed in a water flume to compare flow over two wing geometries: one with a non-linear sweep (swift-like wing) and one with a linear sweep (delta wing). Experiments were performed at three spanwise planes and three angles of attack at a chord-based Reynolds number of 26,000. Streamlines, vorticity, swirling strength, and Q criterion, were used to identify LEVs. The results show similar LEV characteristics for delta and swift-like wing geometries. These similarities suggest that sweep geometries other than a linear sweep (i.e., delta wing) are capable of creating LEVs during gliding flight. Article in Journal/Newspaper Apus apus Dryad Digital Repository (Duke University) |
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Open Polar |
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Dryad Digital Repository (Duke University) |
op_collection_id |
ftdryad |
language |
unknown |
topic |
Leading-edge vortex swift swept-back wings particle image velocimetry delta wing |
spellingShingle |
Leading-edge vortex swift swept-back wings particle image velocimetry delta wing Lambert, William B. Stanek, Mathew J. Gurka, Roi Hackett, Erin E. Data from: Leading-edge vortices over swept-back wings with varying sweep geometries |
topic_facet |
Leading-edge vortex swift swept-back wings particle image velocimetry delta wing |
description |
Micro air vehicles are used in a myriad of applications, such as transportation and surveying. Their performance can be improved through study of wing designs and lift generation techniques including leading-edge vortices (LEVs). Observation of natural fliers, e.g., birds and bats, has shown that LEVs are a major contributor to lift during flapping flight, and the common swift (Apus apus) has been observed to generate LEVs during gliding flight. We hypothesize that non-linear swept-back wings generate a vortex in the leading-edge region, which can augment the lift in a similar manner to linear swept-back wings (i.e., delta wing) during gliding flight. Particle image velocimetry experiments were performed in a water flume to compare flow over two wing geometries: one with a non-linear sweep (swift-like wing) and one with a linear sweep (delta wing). Experiments were performed at three spanwise planes and three angles of attack at a chord-based Reynolds number of 26,000. Streamlines, vorticity, swirling strength, and Q criterion, were used to identify LEVs. The results show similar LEV characteristics for delta and swift-like wing geometries. These similarities suggest that sweep geometries other than a linear sweep (i.e., delta wing) are capable of creating LEVs during gliding flight. |
format |
Article in Journal/Newspaper |
author |
Lambert, William B. Stanek, Mathew J. Gurka, Roi Hackett, Erin E. |
author_facet |
Lambert, William B. Stanek, Mathew J. Gurka, Roi Hackett, Erin E. |
author_sort |
Lambert, William B. |
title |
Data from: Leading-edge vortices over swept-back wings with varying sweep geometries |
title_short |
Data from: Leading-edge vortices over swept-back wings with varying sweep geometries |
title_full |
Data from: Leading-edge vortices over swept-back wings with varying sweep geometries |
title_fullStr |
Data from: Leading-edge vortices over swept-back wings with varying sweep geometries |
title_full_unstemmed |
Data from: Leading-edge vortices over swept-back wings with varying sweep geometries |
title_sort |
data from: leading-edge vortices over swept-back wings with varying sweep geometries |
publishDate |
2019 |
url |
http://hdl.handle.net/10255/dryad.211143 https://doi.org/10.5061/dryad.b7g95d2 |
genre |
Apus apus |
genre_facet |
Apus apus |
op_relation |
doi:10.5061/dryad.b7g95d2/1 doi:10.1098/rsos.190514 doi:10.5061/dryad.b7g95d2 Lambert WB, Stanek MJ, Gurka R, Hackett EE (2019) Leading-edge vortices over swept-back wings with varying sweep geometries. Royal Society Open Science 6(7): 190514. http://hdl.handle.net/10255/dryad.211143 |
op_doi |
https://doi.org/10.5061/dryad.b7g95d2 https://doi.org/10.5061/dryad.b7g95d2/1 https://doi.org/10.1098/rsos.190514 |
_version_ |
1766289148364193792 |