METHOD OF INVESTIGATING EFFECT OF ICING ON KINEMATIC AND POWER PARAMETERS OF WIND TURBINE BLADES Russian patent published in 2025 - IPC F03D80/40 G01M9/06 

FIELD: experimental aerodynamics.

SUBSTANCE: invention relates to experimental aerodynamics and can be used to study in laboratory conditions the effect of icing on flow kinematics and power parameters of a wind turbine blade, as well as for testing materials used in "arctic" conditions. Air flow is formed in a closed circuit with the possibility of adjusting its speed and temperature. Wind turbine blade element is placed into the air flow with possibility of changing the angular position. Personal computer is connected to a resistance thermal converter and a thermal anemometer, by means of which the flow temperature is controlled in the range from -25 to 40 °C with accuracy of maintaining temperature ±0.5 °C. A honeycomb is installed after the resistance thermal converter to reduce the level of air flow turbulence. Droplet moisture is formed in the air flow by spraying fine aerosol in the flow core. After formation of ice on the surface of the element of the wind turbine blade, supply of fine aerosol is stopped and the specified parameters of the air humidity level are maintained and static electricity is prevented by means of the steam generator. Laser Doppler anemometry is used to study the effect of icing on the flow kinematics and power parameters of the wind turbine blade.

EFFECT: enabling simulation of atmospheric conditions associated with formation and accumulation of ice, and investigation of the effect of icing on kinematic and power parameters of wind turbine blades.

1 cl, 5 dwg