Jets and free stream interaction around a low-Reynolds-number airfoil leading edge

Low-Reynolds-number airfoils typically lack desirable aerodynamic performan ce and con benefit from appropriate flow control strategies. This work nume rically examines the physical phenomena involving the interaction between f ree stream and jet flows issued from two rows of discrete holes over the le ading edge of an airfoil surface. A pressure correction algorithm is adopte d to solve the Navier-Stokes equations along with the k-epsilon turbulence model. Six different combinations of the Reynolds number, and density and v elocity ratios are investigated to assess their effects on the large-scale flow structure such as pressure distribution, jet trajectories, and overall flow characteristics around a low-Re airfoil.