EI ρA Wn(x) eigenfunction corresponding to the n th eigenvalue Tn(t) generalized function corresponding to the n th eigenvalue Fn(t) forcing function in terms of the n th eigenmode z the deflection of the beam in the complex plane x nondimensional length scale by chord length of the NACA0012 airfoil κ Reduced plunging frequency, ωc U∞ h non-dimensional amplitude,y/c ha maximum nondimensional am...

Multiple solutions of the small-disturbance potential equation and the full potential equation were known for the NACA0012 airfoil in a certain range of transonic Mach numbers and at zero angle of attack. However the multiple solutions for this particular airfoil were not observed using Euler or Navier-Stokes equations under the above flow conditions. In the present work, both the Unsteady Reyn...

This article presents application of an adjoint method to the aerodynamic shape optimization of deflector vanes installed in the fan nozzle of a turbofan engine. The purpose of the vanes is to reduce jet noise radiated towards the community, and the specific application of this study is for a supersonic turbofan engines with bypass ratio 2.7. The cost function used in the optimization includes ...

available at: https://www.grc.nasa.gov/hiocfd/workshop-results/ Case C1.2b: Flow over the NACA0012 airfoil transonic case Andrea Ferrero∗and Francesco Larocca† Department of Mechanical and Aerospace Engineering Politecnico di Torino, Italy

Humpback whales have very special fins, which reduce the friction force by projections on fins and enhance lift with increasing angle of attack. Thus, it has opportunity to move less energy. In this study, tubular structure was formed adapted NACA0012 airfoil profile. Numerical modelling tubercle wing performed in ANSYS FLUENT. numerical modelling, k-ω SST Transition turbulence models were used...

In this paper we carry out computational studies of three-dimensional flow over flapping wings. The problems we have investigated include, firstly, three-dimensonal simulation of flow over an extruded SD7003 airfoil in plunging motion at transitional Reynolds number and, secondly, flow over a pair of flapping rectangle wings with constant NACA0012 cross-sectional airfoil profile at low Reynolds...