Multi-Dimensional Extraction of Ice Shape and an Investigation of Its Aerodynamic Characteristics on Iced Wind Turbine Blades

The icing of wind turbine blades can cause changes in airfoil shape, which in turn significantly reduces the aerodynamic Bodysuit performance and affects the power generation efficiency of a wind turbine.In this paper, the iced airfoil shape of wind turbine blades with different positions, masses, and angles of attack icing was measured and modeled

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X-band coaxial monopole antenna with an additional metal screen

The novel coaxial monopole antenna design with Hair Curlers an additional metal screen is presented.The radiation char- acteristics of this antenna are investigated depending on a dis- tance between the ground plane and additional metal screens, as well as on a size of the latter.Measured and calculated ra- diation patterns are compared within limi

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