- Epstein, Ronald J. and Bliss, Donald B., Wake generation compressibility effects in unsteady aerodynamics,
AIAA Journal, vol. 37 no. 3
pp. 393 - 396 .
(last updated on 2007/04/09)
The necessity for modeling unsteady compressible wake effects in compressible unsteady aerodynamics is addressed. The role of compressibility during the initial stages of wake formation is determined. A compact portion of the wake, that which is closest to the trailing edge, is most important with regard to wake compressibility for many subsonic flows. A simple approximation is derived that determines the relative magnitude of the compressible wake length that must be used in a calculation. The compressible wake phenomena discussed have implications for the fundamental understanding of the aeroacoustic physics of unsteady wake generation in compressible flow.
Unsteady flow;Wakes;Subsonic aerodynamics;Mathematical models;Approximation theory;