NAVIER-STOKES ANALYSIS OF A CIRCULATION CONTROL AIRFOIL

The two-dimensional, compressible, mass-averaged Navier-Stokes equatio ns are used to investigate hows about a typical circulation control ai rfoil. The governing equations are solved using the implicit approxima te-factorization algorithm of Beam-Warming with a modified algebraic e ddy viscosity model. Results are compared with experimental data, and excellent agreement is obtained. The effects of different jet momentum coefficients and angles of attack on the how are studied. The mechani sm of genenating large lift by circulation control is discussed.