Measurement of unsteady aerodynamic force of 3d flapping wing in hovering to forward flight

Hiroto Nagai, Koji Isogai, Toshiyuki Hayase

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

We measured unsteady aerodynamic forces of a 3D flapping wing in hovering and forward flight using a dynamically scaled mechanical model in a water tunnel, and investigated effects of motion kinematics of a flapping wing on the aerodynamic characteristics. Two simple motion types were used for comparison; trapezoidal and sinusoidal types, whose time histories of angular velocities are represented as trapezoidal and sinusoidal functions, respectively. The results show that the trapezoidal type of flapping motion and the trapezoidal type of feathering motion with the shorter rotational time should be selected in order to obtain higher efficiency in both hovering and forward flight. In order to obtain larger lift, the sinusoidal type of flapping motion and the trapezoidal type of feathering motion should be selected in hovering and slower forward flight; and the sinusoidal type of flapping motion and the sinusoidal type of feathering motion should be selected in faster forward flight.

Original languageEnglish
Title of host publicationICAS Secretariat - 26th Congress of International Council of the Aeronautical Sciences 2008, ICAS 2008
Pages800-810
Number of pages11
Publication statusPublished - Dec 1 2008
Externally publishedYes
Event26th Congress of International Council of the Aeronautical Sciences 2008, ICAS 2008 - Anchorage, AK, United States
Duration: Sep 14 2008Sep 19 2008

Publication series

NameICAS Secretariat - 26th Congress of International Council of the Aeronautical Sciences 2008, ICAS 2008
Volume5

Other

Other26th Congress of International Council of the Aeronautical Sciences 2008, ICAS 2008
CountryUnited States
CityAnchorage, AK
Period9/14/089/19/08

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering
  • Control and Systems Engineering
  • Electrical and Electronic Engineering
  • Materials Science(all)

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  • Cite this

    Nagai, H., Isogai, K., & Hayase, T. (2008). Measurement of unsteady aerodynamic force of 3d flapping wing in hovering to forward flight. In ICAS Secretariat - 26th Congress of International Council of the Aeronautical Sciences 2008, ICAS 2008 (pp. 800-810). (ICAS Secretariat - 26th Congress of International Council of the Aeronautical Sciences 2008, ICAS 2008; Vol. 5).