Drag of Circular Cylinders at Transonic Mach Numbers

Abstract

CM2w (Fig2), we see that at all incidences it is maximum when N= 1 and decreases rapidly to CM2C with increase in N. Finally, from Fig. 3, it is seen that at all incidences XCP moves forward (toward the nose) when TV is even and backward (toward the base) when N is odd, with the maximum backward shift occurring at TV— 1 and maximum forward shift occurring at N-2. But, at lower incidence (e.g., at a = 20°), the XCPW >X_CPC for all Nexcept 7V=2, whereas at higher incidences XCPW \, i.e., XCP w shifts toward the nose because of the finite number of waves along the body, before ultimately tending to XCPC as N becomes very large.