Comparison of two Navier-Stokes aeroelastic methods using BACT benchmark experimental data

Two three-dimensional compressible Navier-Stokes codes are applied to selected test cases from an experimental dataset on a model known as the Benchmark Active Control Technology (BACT) wing. The BACT test provides data for the validation of aerodynamic, aeroelastic and active aeroelastic control simulation codes. In this paper, the present computational methods will be evaluated using these data. Computational results from two commonly used aeroelastic Navier-Stokes solution methods will be compared with experimental data for a wing with a statically deflected and oscillating trailing edge control surface. This paper also presents an initial assessment of the limits of validity of the use of continuous surface modeling and a structured CFD flow solver for the computation of complex moving control surface geometries. Motivation for this work is the potential development of an integrated computational aeroelasticity and active control simulation capability for the transonic flight regime.