Computational Study of a Two-Slot Circulation Control Airfoil

Predictions of the aerodynamic coefficients for a two-slot circulation control airfoil are made by solving the two-dimensional, compressible, mass-averaged, Navier-Stokes equations. Numerical solutions are obtained by using the Beam-Warming implicit approximate factorization technique and the Baldwin-Lomax turbulence model with a curvature correction. Predictions using different combinations of blowing momentum coefficients with each of the two slots are discussed and compared with previous single-slot numerical results.