Lift sensitivity analysis for a Whitcomb airfoil with aileron deflections
by Alexander Kuzmin
Progress in Computational Fluid Dynamics, An International Journal (PCFD), Vol. 15, No. 1, 2015

Abstract: Transonic flow past a two-element Whitcomb airfoil is studied in the range of free-stream Mach numbers between 0.81 and 0.86. Numerical solutions of the Reynolds-averaged Navier-Stokes (RANS) equations are obtained with a finite-volume solver on unstructured meshes using several turbulence models. Both smooth and rough airfoil surfaces are considered. The study reveals free-stream conditions that admit extreme sensitivity of aerodynamic coefficients to small changes of the aileron deflection. In addition, computations demonstrate free-stream conditions in which aileron deflections produce no effect on the lift.

Online publication date: Thu, 05-Feb-2015

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