Study Of Multi Parameter Influence Of Aircraft Icing

Aircraft icing affect the flight safety seriously,by using the numerical simulation method, the resource consumption of the test can be reduced. Predicting aircraft icing accretion process、studying icing critical parameters、accessing the aerodynamic characteristics influence of the ice shapes are important for designing anti-icing protection device and ensuring flight safety.The main work in this paper include: analyze and conclude the relevant research literature at home and abroad, study NASA Lewis aircraft icing numerical simulation development project, understand the development trend of icing field; study the 2-D airfoil icing numerical calculation method(grid generation, flow field calculation, droplet trajectory calculation, ice formation and etc.), compare the numerical calculation results with the reference experimental results in order to verify the method used in this paper; study NACA airfoil series, calculate the ice shape affected by the airfoil parameters(maximum thickness, maximum camber, maximum camber position) based on the icing numerical simulation method, analyze the influence of these parameters; study the characteristics of ice shapes formed under different icing conditions and different flight conditions; study the aerodynamic characteristics before/after icing, calculate the airfoil lift/drag force by using the CFD method, compare and analyze the aerodynamics characteristics caused by different icing conditions, and evaluate the flight safety damage caused by the airfoil icing.This paper study the effect of multi icing parameters and icing influence on aircraft aerodynamic characteristics. It will lay a foundation for the ice shape calculation and the anti-icing system design.