Subsonic flow past an oscillating cascade with steady blade loading - Basic formulationA nonlinear boundary value problem governing the subsonic flow in a single, extended, blade passage region of a high-deflection, two dimensional, oscillating cascade is derived. The blades are assumed to be undergoing identical harmonic motions of small amplitude with constant phase angle between the motion of adjacent blades. An asymptotic perturbation approach is used to determine the velocity potential. This formulation can be used in the numerical determination of unsteady potential and thus the unsteady aerodynamic force and moment under various combinations of cascade and flow parameters.
Document ID
19760027394
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Verdon, J. M. (NASA Lewis Research Center Cleveland, OH, United States)
Caspar, J. R. (United Technologies Research Laboratories East Hartford, Conn., United States)
Adamczyk, J. J. (NASA Lewis Research Center Cleveland, Ohio, United States)