In this study, a numerical simulation of de-icing on wind turbine blades using a dielectric barrier discharge (DBD) plasma actuator was performed. Initially, the phenomenon of ice formation on a NACA 0012 airfoil was investigated under baseline conditions, with a fixed set of parameters including inlet air temperature, air velocity, relative humidity, an‎d airfoil surface temperature. To achieve a more detailed eva‎luation, three parameters were held constant while the effect of each remaining parameter on the ice accretion rate was analyzed an‎d compared with the baseline case. The thermal effect of the plasma actuator was then incorporated into the energy equations as a heat source, an‎d its influence on the ice accretion rate an‎d surface temperature was examined. The mixture phase-change model, combined with the k–ω turbulence model, was used for the flow simulation, while user-defined functions (UDFs) were implemented to model the heat generation from the plasma actuator. The simulation was conducted in a two-dimensional, transient framework. Results indicated that increasing relative humidity an‎d inlet air temperature, as well as decreasing air velocity an‎d airfoil surface temperature, led to an increase in the rate of ice accumulation. Under the baseline condition an‎d in the absence of the plasma actuator, the maximum ice accretion rate was found to be 3.46×10^(-2)grams. Upon activating the plasma actuator, the surface temperature increased due to the generated heat flux, reaching values above the freezing point an‎d resulting in effective de-icing of the blade surface. When the plasma actuator was active from the start of the simulation, the total ice mass decreased to zero, indicating complete prevention of ice formation. These findings demonstrate the high efficiency of plasma actuators in de-icing an‎d preventing ice formation on wind turbine blades under cold climatic conditions.

رامين كوهي كمالي , محمدرضا توكلي نژاد

محمدرضا سليم پور , علي انصاري