Academic Journals Database
Disseminating quality controlled scientific knowledge

Theoretical modelling of wakes from retractable flapping wings in forward flight

Author(s): Ben Parslew | William J. Crowther

Journal: PeerJ
ISSN 2167-8359

Volume: 1;
Start page: e105;
Date: 2013;
VIEW PDF   PDF DOWNLOAD PDF   Download PDF Original page

Keywords: Aerodynamics | Wake | Bird | Flapping | Particle image velocimetry | Vortex | Animal flight

A free-wake method is used to simulate the wake from retractable, jointed wings. The method serves to complement existing experimental studies that visualise flying animal wakes. Simulated wakes are shown to be numerically convergent for a case study of the Rock Pigeon in minimum power cruising flight. The free-wake model is robust in simulating wakes for a range of wing geometries and dynamics without requiring changes to the numerical method. The method is found to be useful for providing low order predictions of wake geometries. However, it is not well suited to reconstructing 3d flowfields as solutions are sensitive to the numerical mesh node locations.

Tango Jona
Tangokurs Rapperswil-Jona

     Save time & money - Smart Internet Solutions