Investigation on the aerodynamic characteristic of wind turbine blade airfoils under different ice cover patterns
The blades of wind turbine often face the danger of icing under low temperature environment,making it crucial to study the impact of icing on the aerodynamic characteristics of the wind turbine airfoil.This paper employs a numerical simulation based on the fi-nite volume method to investigate the aerodynamic characteristics of the S809 airfoil and the effect of icing.Specifically,this study ana-lyzes and compares the influence of two types of ice coverings,glaze ice and rime ice,on the aerodynamic characteristics of the airfoil.The finding reveal that the rime icing has negligible influence on the aerodynamic characteristics of the airfoil,whereas the glaze icing will significantly deteriorate the aerodynamic characteristics of the airfoil and may resulting negative drag under certain conditions.
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