[PERSON]  
1 Department of Thermal and Technical Physics, Al-Farabi Kazakh National University, 71 Al-Farabi Ave, Almaty 050040, Kazakhstan; [EMAIL_ADDRESS] (N.K. ); [EMAIL_ADDRESS] (Z.B. ); [EMAIL_ADDRESS] (R.M. ); [EMAIL_ADDRESS] (M.I. ); [EMAIL_ADDRESS] (A.K. ); [EMAIL_ADDRESS] (B.B. ); 09 [EMAIL_ADDRESS] (B.A.) [PERSON]  
1 Department of Thermal and Technical Physics, Al-Farabi Kazakh National University, 71 Al-Farabi Ave, Almaty 050040, Kazakhstan; [EMAIL_ADDRESS] (N.K. ); zhandos.haizhuma@kazmu.lz (Z.B. ); [EMAIL_ADDRESS] (R.M. ); muhtar.isataev@kazmu.lz (M.I. ); [EMAIL_ADDRESS] (A.K. ); [EMAIL_ADDRESS] (B.B. ); 09 [EMAIL_ADDRESS] (B.A.) [PERSON]  
1 Department of Thermal and Technical Physics, Al-Farabi Kazakh National University, 71 Al-Farabi Ave, Almaty 050040, Kazakhstan; [EMAIL_ADDRESS] (N.K. ); zhandos.haizhuma@kazmu.lz (Z.B. ); [EMAIL_ADDRESS] (R.M. ); muhtar.isataev@kazmu.lz (M.I. ); [EMAIL_ADDRESS] (A.K. ); [EMAIL_ADDRESS] (B.B. ); 09 [EMAIL_ADDRESS] (B.A.) [PERSON]  
1 Department of Thermal and Technical Physics, Al-Farabi Kazakh National University, 71 Al-Farabi Ave, Almaty 050040, Kazakhstan; [EMAIL_ADDRESS] (N.K. ); zhandos.haizhuma@kazmu.lz (Z.B. ); [EMAIL_ADDRESS] (R.M. ); muhtar.isataev@kazmu.lz (M.I. ); [EMAIL_ADDRESS] (A.K. ); birzham.bekktbay@kazmu.lz (B.B. ); 09 [EMAIL_ADDRESS] (B.A.) [PERSON]  
1 Department of Thermal and Technical Physics, Al-Farabi Kazakh National University, 71 Al-Farabi Ave, Almaty 050040, Kazakhstan; [EMAIL_ADDRESS] (B.A.) [PERSON]  
1 Department of Thermal and Technical Physics, Al-Farabi Kazakh National University, 71 Al-Farabi Ave, Almaty 050040, Kazakhstan; [EMAIL_ADDRESS] (B.A.) [PERSON]  
1 Department of Thermal and Technical Physics, Al-Farabi Kazakh Kazakh National University, 71 Al-Farabi Ave, Almaty 050040, Kazakhstan; [EMAIL_ADDRESS] (N.K. ); zhandos.haizhuma@kazmu.lz (Z.B. ); [EMAIL_ADDRESS] (R.M. ); muhtar.isataev@kazmu.lz (M.I. ); [EMAIL_ADDRESS] (A.K. ); [EMAIL_ADDRESS] (B.B. ); 09 [EMAIL_ADDRESS] (B.A.) [PERSON]  
1 Department of Thermal and Technical Physics, Al-Farabi Kazakh Kazakh National University, 71 Al-Farabi A of wind flow energy conversion efficiency [4]. The main problems are related to uneven torque, relatively low wind energy utilization factor, and difficulty of self-starting at low wind speeds [5]. Modern wind power is based on two main types of turbines, differing in the orientation of the rotation axis [4; 6; 7]. Horizontal-axis turbines (HAWT) are structures where the rotor blades are connected to a horizontal shaft that transmits rotation to the electric generator. The peculiarity of this type is the need for constant orientation to the wind direction, which is ensured by special sensors and a positioning system [8]. An alternative is vertical axis-wind turbines (VAWT), the design of which involves connecting the blades to a vertical shaft [9]. Despite being less common, these units are becoming increasingly popular due to technological improvements and a number of design advantages. However, their efficiency is somewhat limited by operating conditions--operation in the surface layer with turbulent air flows affects the output power [4; 10]. Vertical-axis wind turbines (VAWTs) offer a number of significant advantages over horizontal-axis turbines (HAWTs), making them attractive for certain applications [11]. One of the key advantages of VAWTs is their structural simplicity and cost-effectiveness. The absence of the need for a wind orientation system significantly reduces both production and operating costs [12]. The unified design of the blade aerodynamic profiles also helps optimize production costs. The placement of the main mechanical components--the generator, transmission, and braking system--close to the ground surface significantly simplifies the maintenance of the installation [13]. From an environmental and safety perspective, vertical-axis turbines demonstrate advantages in the form of reduced noise levels and reduced risk to birds [14].