Actuator disk model and span efficiency of flapping flight in bats based on time-resolved PIV measurements
Författare
Summary, in English
All animals flap their wings in powered flight to provide both lift and thrust, yet few human-engineered designs do so. When combined with flexible wing surfaces, the resulting unsteady fluid flows and interactions in flapping flight can be complex to describe, understand, and model. Here, a simple modified actuator disk is used in a quasi-steady description of the net aerodynamic lift forces on several species of bat whose wakes are measured with time-resolved PIV. The model appears to capture the time-averaged and instantaneous lift forces on the wings and body, and could be used as basis for comparing flapping flight efficiency of different animal species and micro air vehicle designs.
Avdelning/ar
Publiceringsår
2011
Språk
Engelska
Sidor
511-525
Publikation/Tidskrift/Serie
Experiments in Fluids
Volym
51
Dokumenttyp
Artikel i tidskrift
Förlag
Springer
Ämne
- Biological Sciences
Status
Published
Forskningsgrupp
- Animal Flight Lab
ISBN/ISSN/Övrigt
- ISSN: 1432-1114