The aerodynamic performance analysis based on the configurations of two-dimension inflatable wings under high Reynolds number was analyzed. Firstly

configuration characteristic of the two-dimension inflatable wing was designed to define an offset parameter describing the degree of approximation between an inflatable wing profile and a standard airfoil

then several models were developed. Furthermore

with the numerical method

aerodynamic performance of the inflatable wing and the sensibility of the offset parameter was studied and compared with the standard airfoil. Numerical result showed that the aerodynamic performance of the inflatable wing had loss to a certain degree under high Reynolds number. Meanwhile

with the flow field characteristic analysis

the reason for the total drag increasing significantly was explained from mechanism that

in those bumpy areas

the pressure distribution changed a lot

so the increase of the local pressure caused significant increase of pressure drag.