FIRST-ORDER THEORY FOR UNSTEADY MOTION OFnTHIN WINGS AT SUPERSONIC SPEEDS

摘要

An approximate method Is presented for determining the pres-sure distribution due to unsteady motion for thin wings of fairly general plan form. The local source strength, which is propor¬tional to the normal component of the perturbation velocity, is represented by a power series in the wing coordinates, in which the coefficients are functions of time. The method is valid for arbitrary motions when the second derivative of the perturbation velocities with respect to time is not large.