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° to 90° are analyzed. It has been established that a decrease in the lift coefficient is observed at flow rake angles above 30°, so the wind engine element shows a positive result within a range of rake angles from–30 ° ≤ α ≤ 30°. 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.

We have analyzed the propagation of pulsed pressure produced by electric discharges in a heterogeneous liquid during well drilling. The pressure dynamics has been calculated based on theoretical analysis of the nonlinear process of the electrohydraulic effect in a heterogeneous medium. As a result of analysis, the time dependences of the relative pressure and shock front coordinate have been obtained.

The results of studies on determining the speed of a wind power plant and calculating the wind energy utilization coefficient of a rotating cylinder constant cross-section with a smooth surface are presented. With the help of experimental and theoretical methods, studies of the main aerodynamic characteristics the efficiency of a wind power plant with blades in the form of rotating cylinders were carried out. The changes in the aerodynamic parameters of the flow were 2 m/s and higher. The results showed that the value of the wind energy utilization coefficient decreases with an increase in the speed of the incoming flow. It is experimentally established that the value of the speed a wind power plant decreases with an increase in the Reynolds number.