A New Method for Calculating Wing Along Aerodynamics to Angle of Attack 180 deg
NAVAL SURFACE WARFARE CENTER DAHLGREN DIV VA
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A new semiempirical method has been developed to estimate wing alone aerodynamics at all Mach numbers and angles of attack AOA encountered in flight. The method utilizes the slender body or linearized theories at low AOA and several wing alone data bases at higher AOA. In areas where data is not available, extrapolations and interpolations are used with existing data. The new method is shown to be more accurate than the second-order technique developed for the 1993 version of the NSWCDD Aeroprediction Code AP93 over the AOA range of 0 to 30 deg where that technique is applicable. More importantly, however, is the fact that the new method allows AOA to 180 deg. As a result, this new wing alone method forms the first step in expanding the AP93 to higher AOA than 30 deg. Semiempirical method, Wing alone aerodynamics, High angles of attack, AOA, Fourth-order technique, NSWCDD Aeroprediction Code, AP93.