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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ftdans:oai:easy.dans.knaw.nl:easy-dataset:128639 2023-07-02T03:30:49+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. 2019-06-06T08:15:16.000+02:00 http://nbn-resolving.org/urn:nbn:nl:ui:13-qo-1392 https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:128639 unknown doi:10.5061/dryad.b7g95d2/1 http://nbn-resolving.org/urn:nbn:nl:ui:13-qo-1392 doi:10.5061/dryad.b7g95d2 https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:128639 OPEN_ACCESS: The data are archived in Easy, they are accessible elsewhere through the DOI https://dans.knaw.nl/en/about/organisation-and-policy/legal-information/DANSLicence.pdf Life sciences medicine and health care 2019 ftdans https://doi.org/10.5061/dryad.b7g95d2/110.5061/dryad.b7g95d2 2023-06-13T12:58:25Z 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. Other/Unknown Material Apus apus Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen) |
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Open Polar |
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Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen) |
op_collection_id |
ftdans |
language |
unknown |
topic |
Life sciences medicine and health care |
spellingShingle |
Life sciences medicine and health care 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 |
Life sciences medicine and health care |
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. |
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://nbn-resolving.org/urn:nbn:nl:ui:13-qo-1392 https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:128639 |
genre |
Apus apus |
genre_facet |
Apus apus |
op_relation |
doi:10.5061/dryad.b7g95d2/1 http://nbn-resolving.org/urn:nbn:nl:ui:13-qo-1392 doi:10.5061/dryad.b7g95d2 https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:128639 |
op_rights |
OPEN_ACCESS: The data are archived in Easy, they are accessible elsewhere through the DOI https://dans.knaw.nl/en/about/organisation-and-policy/legal-information/DANSLicence.pdf |
op_doi |
https://doi.org/10.5061/dryad.b7g95d2/110.5061/dryad.b7g95d2 |
_version_ |
1770275117106987008 |