TY - GEN
T1 - Unsteady nonlinear aerodynamics of hovering MAVs/insects
AU - Taha, Haithem E.
AU - Hajj, Muhammad R.
AU - Beran, Philip S.
PY - 2013
Y1 - 2013
N2 - The Duhamel superposition principle, applied in unsteady linear aerodynamics, is extended to arbitrary nonlinear lift curves. The unsteady lift due to arbitrary wing motion is generated using the static nonlinear lift curve. A finite-state unsteady aerodynamic model that is based on a two-state approximation of Wagner function is developed. As such, it is suitable for dynamic stability analysis and control synthesis for the systems experiencing nonlinear unsteady flows such as wind turbine blades, rapidly maneuvering aircraft, highly flexible wings, and micro-air-vehicles. The proposed unsteady model is applied to flapping flight and validated through a comparison with direct numerical simulations of Navier-Stokes on hovering insects.
AB - The Duhamel superposition principle, applied in unsteady linear aerodynamics, is extended to arbitrary nonlinear lift curves. The unsteady lift due to arbitrary wing motion is generated using the static nonlinear lift curve. A finite-state unsteady aerodynamic model that is based on a two-state approximation of Wagner function is developed. As such, it is suitable for dynamic stability analysis and control synthesis for the systems experiencing nonlinear unsteady flows such as wind turbine blades, rapidly maneuvering aircraft, highly flexible wings, and micro-air-vehicles. The proposed unsteady model is applied to flapping flight and validated through a comparison with direct numerical simulations of Navier-Stokes on hovering insects.
UR - http://www.scopus.com/inward/record.url?scp=84881441609&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84881441609&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84881441609
SN - 9781624101816
T3 - 51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition 2013
BT - 51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition 2013
T2 - 51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition 2013
Y2 - 7 January 2013 through 10 January 2013
ER -