elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

The complex aerodynamic foot print of desert locusts revealed by large-volume tomographic PIV.

Henningsson, Per and Michaelis, Dirk and Nakata, Toshiyuki and Schanz, Daniel and Geisler, Reinhard and Schröder, Andreas and Bomphrey, Richard (2015) The complex aerodynamic foot print of desert locusts revealed by large-volume tomographic PIV. Journal of the Royal Society Interface, 12 (108), pp. 1-11. The Royal Society. DOI: 10.1098/rsif.2015.0119 ISSN 1742-5689

Full text not available from this repository.

Official URL: http://dx.doi.org/10.1098/rsif.2015.0119

Abstract

Particle image velocimetry (PIV) 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.

Item URL in elib:https://elib.dlr.de/95181/
Document Type:Article
Additional Information:http://rsif.royalsocietypublishing.org/, Paper: 20150119
Title:The complex aerodynamic foot print of desert locusts revealed by large-volume tomographic PIV.
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Henningsson, PerLund UniversityUNSPECIFIED
Michaelis, DirkLaVision, GöttingenUNSPECIFIED
Nakata, ToshiyukiRoyal Veterinary College, Structure & Motion LaboratoryUNSPECIFIED
Schanz, Danieldaniel.schanz (at) dlr.deUNSPECIFIED
Geisler, Reinhardreinhard.geisler (at) dlr.deUNSPECIFIED
Schröder, Andreasandreas.schroeder (at) dlr.deUNSPECIFIED
Bomphrey, RichardThe Royal Veterinary College, Structure & Motion Lab.UNSPECIFIED
Date:2015
Journal or Publication Title:Journal of the Royal Society Interface
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:12
DOI :10.1098/rsif.2015.0119
Page Range:pp. 1-11
Publisher:The Royal Society
ISSN:1742-5689
Status:Published
Keywords:aerodynamics, tomographic particle image velocimetry, desert locust, animal flight, wake deformation, span efficiency
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Simulation and Validation
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Experimental Methods
Deposited By: Micknaus, Ilka
Deposited On:04 Jun 2015 16:17
Last Modified:08 Mar 2018 18:37

Repository Staff Only: item control page

Browse
Search
Help & Contact
Information
electronic library is running on EPrints 3.3.12
Copyright © 2008-2017 German Aerospace Center (DLR). All rights reserved.