The complex aerodynamic footprint of desert locusts revealed by large-volume tomographic particle image velocimetry.
(2015) In Journal of the Royal Society Interface 12(108).- Abstract
- Particle image velocimetry has been the preferred experimental technique with which to study the aerodynamics of animal flight for over a decade. In that time, hardware has become more accessible and the software has progressed from the acquisition of planes through the flow field to the reconstruction of small volumetric measurements. Until now, it has not been possible to capture large volumes that incorporate the full wavelength of the aerodynamic track left behind during a complete wingbeat cycle. Here, we use a unique apparatus to acquire the first instantaneous wake volume of a flying animal's entire wingbeat. We confirm the presence of wake deformation behind desert locusts and quantify the effect of that deformation on estimates of... (More)
- Particle image velocimetry has been the preferred experimental technique with which to study the aerodynamics of animal flight for over a decade. In that time, hardware has become more accessible and the software has progressed from the acquisition of planes through the flow field to the reconstruction of small volumetric measurements. Until now, it has not been possible to capture large volumes that incorporate the full wavelength of the aerodynamic track left behind during a complete wingbeat cycle. Here, we use a unique apparatus to acquire the first instantaneous wake volume of a flying animal's entire wingbeat. We confirm the presence of wake deformation behind desert locusts and quantify the effect of that deformation on estimates of aerodynamic force and the efficiency of lift generation. We present previously undescribed vortex wake phenomena, including entrainment around the wing-tip vortices of a set of secondary vortices borne of Kelvin-Helmholtz instability in the shear layer behind the flapping wings. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/7508364
- author
- Henningsson, Per LU ; Michaelis, Dirk ; Nakata, Toshiyuki ; Schanz, Daniel ; Geisler, Reinhard ; Schröder, Andreas and Bomphrey, Richard J
- organization
- publishing date
- 2015
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Journal of the Royal Society Interface
- volume
- 12
- issue
- 108
- article number
- 20150119
- publisher
- The Royal Society of Canada
- external identifiers
-
- pmid:26040598
- wos:000358824600027
- scopus:84936775058
- pmid:26040598
- ISSN
- 1742-5662
- DOI
- 10.1098/rsif.2015.0119
- language
- English
- LU publication?
- yes
- id
- 93e314c5-c13c-45fa-b77c-86df3ee70e07 (old id 7508364)
- date added to LUP
- 2016-04-01 11:09:56
- date last changed
- 2024-03-25 02:28:30
@article{93e314c5-c13c-45fa-b77c-86df3ee70e07,
abstract = {{Particle image velocimetry has been the preferred experimental technique with which to study the aerodynamics of animal flight for over a decade. In that time, hardware has become more accessible and the software has progressed from the acquisition of planes through the flow field to the reconstruction of small volumetric measurements. Until now, it has not been possible to capture large volumes that incorporate the full wavelength of the aerodynamic track left behind during a complete wingbeat cycle. Here, we use a unique apparatus to acquire the first instantaneous wake volume of a flying animal's entire wingbeat. We confirm the presence of wake deformation behind desert locusts and quantify the effect of that deformation on estimates of aerodynamic force and the efficiency of lift generation. We present previously undescribed vortex wake phenomena, including entrainment around the wing-tip vortices of a set of secondary vortices borne of Kelvin-Helmholtz instability in the shear layer behind the flapping wings.}},
author = {{Henningsson, Per and Michaelis, Dirk and Nakata, Toshiyuki and Schanz, Daniel and Geisler, Reinhard and Schröder, Andreas and Bomphrey, Richard J}},
issn = {{1742-5662}},
language = {{eng}},
number = {{108}},
publisher = {{The Royal Society of Canada}},
series = {{Journal of the Royal Society Interface}},
title = {{The complex aerodynamic footprint of desert locusts revealed by large-volume tomographic particle image velocimetry.}},
url = {{http://dx.doi.org/10.1098/rsif.2015.0119}},
doi = {{10.1098/rsif.2015.0119}},
volume = {{12}},
year = {{2015}},
}