Reduction Drag of Circular Cylinder Due to Installation of Four Flat Plates

The paper presents theoretical and experimental studies on the reducing drag of a circular cylinder. The reduction drag is achieved by installing near a circular cylinder four flat plates. Flat plates installed under the meridional angle relative to the cylinder and at an angle of attack. Flat plates are symmetrically relative to the cylinder. There is a flat injection channel of constant width between the plates and the cylinder. We examine this situation of flat plates due to which the drag coefficient of the total combination reaches the smallest value. The study of reducing the drag of the cylinder was carried out in the package hydrodynamic analysis of Flow Simulation, as well as in the wind tunnel of Samara University. It has been shown that that the location of plates near the cylinder at certain angles, allows us to achieve reduction drag approximately before 40% compared with an isolated cylinder.