Improvements on computations of high speed propeller unsteady aerodynamics

This paper presents the application of the CANARI flow solver to the computation of unsteady effects in the aerodynamic interaction of a high speed propeller with the aircraft. The method is first validated on the APIAN isolated propeller test case by comparison with experiment at M=0.7. The method is then applied to the time accurate 3D Euler computation of a generic transport aircraft at M=0.68. Analysis of the results shows significant unsteady effects both on the propeller forces and on the wing aerodynamic flows, by comparison with steady computations.