Path: ACPro/ACProAerodynamics
% Wave drag using Ackeret theory. It uses a logistic function to deal with the drag divergence region. Type CDWave for a demo. -------------------------------------------------------------------------- Form: cD = CDWave( m, alpha, t, cDM1 ) -------------------------------------------------------------------------- ------ Inputs ------ m (1,:) Freestream Mach number alpha (1,1) Angle of attack (rad) (0 is the default) mDD (1,1) Mach drag divergence (0.8 is the default) t (1,1) Thickness ratio (0 is the default) cDM1 (1,1) Drag at Mach 1 (0.05 is the default) ------- Outputs ------- cD (1,:) Drag coefficient -------------------------------------------------------------------------- Reference: B. W. McCormick, "Aerodynamics, Aeronautics, and Flight Mechanics, John Wiley & Sons, 1979, pp. 274-279. J. D. Anderson Jr., "Introduction to Flight 3rd Edition", McGraw-Hill, 1989, p. 215. --------------------------------------------------------------------------
Common: CommonData/SwooshWatermark Common: General/CellToMat Common: General/MatToCell Common: General/Watermark Common: Graphics/NewFig Common: Graphics/Plot2D Common: Graphics/PltStyle Math: Analysis/Logistic
Back to the ACPro Module page