A model is developed for the interaction of unsteady incident disturbance i
n a swirling mean motion with an annular cascade of unloaded blades. The in
cident disturbances are modeled by using a combined eigenmode analysis with
initial-value problem solutions as described elsewhere (Golubev, V.V., and
Atassi, H, M,, "Unsteady Swirling Flows in Annular Cascades, Part 1: Evolu
tion of Incident Disturbances," AIAA Journal, Vol. 38, No. ?, 2000, pp, 114
2-1149), The scattered field is calculated in response to the blade upwash
and accounts for the effects of the centrifugal and Coriolis forces induced
by the mean swirl. Benchmark results are presented for the unsteady blade
pressure in the rotor-wake/stator interaction problem. These results are co
mpared with the strip theory and show strong dependence on the swirl-induce
d changes in the radial distribution and axial evolution of the incident vo
rtical disturbances.