Studying the dependence of the aerodynamic characteristics of rotating cylinders on the rake angle of air flow

The results of experimental studies on estimating the lift force and lift coefficient of a rotating cylinder of constant cross section are presented. The data on the effect of the flow rake angle on the aerodynamic characteristics of rotating cylinders within a range of angles from 0$^{\circ}$ to 90$^{\circ}$ are analyzed. It has been established that a decrease in the lift coefficient is observed at flow rake angles above 30$^{\circ}$, so the wind engine element shows a positive result within a range of rake angles from -30$^{\circ}$ $\le\alpha\le$ 30$^{\circ}$. The data of these experimental studies can be used for the development of wind engines with blades designed as rotating cylinders with a smooth surface.