PMAL3D, the Aerodynamics Laboratory’s in-house panel method program coupled with a boundary layer code, has been improved in dealing with various three-dimensional configurations. Three different configurations have been studied with this improved program. They are Fokker F-28 MK1000 aircraft with aileron deflections, a NASA LS(1)-0417 configuration (a wing/flap combination) and a NACA 4415 airfoil. The aerodynamic effects of contaminated lifting surfaces of the F-28 have been analyzed and discussed in detail. PMAL3D’s ability to match experimental or flight data wherever available and its reliable predictive capability make it a valuable practical engineering tool. The in-house program was further assessed through its applications to the NASA LS(1)-0417 configuration and the NACA 4415 airfoil.

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