Numerical determination of indicial lift and moment functions for a two-dimensional sinking and pitching airfoil at Mach numbers 0.5 and 0.6

Bernard Mazelsky, Joseph A. Drischler
naca-tn-2739
Jul 1952


The indicial lift and moment functions are determined approximately for sinking and pitching motion at Mach numbers M of 0.5 and 0.6. These functions are determined from a knowledge of the existing oscillatory coefficients at the low reduced frequencies and from approximate expressions of these coefficients at the high reduced frequencies.

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