Controlling the Flow past a Semicircular Airfoil at Zero Angle of Attack Using Slot Suction in One or Two Vortex Cells for Attaining Extremal Lift
- 11 Downloads
Calculations using multiblock computational technologies and a model of shear-stress transport modified with allowance for the curvature of streamlines in turbulent airflow were performed at a zero angle of attack for a semicircular airfoil containing one or two surface vortex cells with slot suction. The results showed evidence of stabilization of a nearly undetached flow and attainment of an extremal lift of C y = 5.2 and a lift-to-drag ratio of K = 24 with allowance for energy losses for suction in the vortex cells.
Unable to display preview. Download preview PDF.
- 1.Control of the Flow Past Bodies with Vortex Cells in the Application to Integrated Arrangement Aircrafts (Physical and Numerical Simulation), Ed. by A. V. Ermishin and S. A. Isaev (Mosk. Gos. Univ., Moscow, 2003) [in Russian].Google Scholar
- 2.A. I. Savitsky, L. N. Schukin, V. G. Karelin, et al., US Patent No. 5417391 (1995); RF Patent No. 2015941 (1991).Google Scholar
- 3.Aerodynamics of Thickened Bodies with Vortex Cells (Numerical and Physical Simulation), Ed. by S. A. Isaev (Politekh. Univ., St. Petersburg, 2016) [in Russian].Google Scholar
- 6.Z. P. Sluchanovskaya, Nauch. Tr. Inst. Mekh., No. 24, 52 (1973).Google Scholar