publication . Thesis . 2009

Unsteady Aerodynamics of Deformable Thin Airfoils

Walker, William Paul;
Open Access
  • Published: 05 Aug 2009
  • Publisher: Virginia Tech
  • Country: United States
Abstract
Unsteady aerodynamic theories are essential in the analysis of bird and insect flight. The study of these types of locomotion is vital in the development of flapping wing aircraft. This paper uses potential flow aerodynamics to extend the unsteady aerodynamic theory of Theodorsen and Garrick (which is restricted to rigid airfoil motion) to deformable thin airfoils. Frequency-domain lift, pitching moment and thrust expressions are derived for an airfoil undergoing harmonic oscillations and deformation in the form of Chebychev polynomials. The results are validated against the time-domain unsteady aerodynamic theory of Peters. A case study is presented which analy...
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handle: 10919/34620
Subjects
free text keywords: Unsteady Aerodynamics, Deformable Airfoils
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Thesis . 2009
Provider: VTechWorks
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