Aerodynamic Study of Active Flow Control using Blowing Jets over Some Trailing Edge Configurations

摘要

Flow control on aerodynamic airfoil has been studied since the early twentieth century. Basically, one applies flow control wing, a concept derived from the conventional blowing and suction procedure developed to increase the lift of an airfoil. The present paper has two major goals: first, to investigate 3 constructive solutions of trailing edge with blowing jets aiming to minimize the stall and to increase the lift: with slot and cylindrical trailing edge, with slot, cylindrical trailing edge and a slim channel cut with half of the slot dimension and a third configuration involving a blown flap; the second one is to study the influence of slot location on the lift increase. The numerical simulations were performed on three configurations - the two-dimensional model using the RANS supplemented with the shear-stress transport (SST) k-ω based model.