Computational aeroacoustics of propeller noise in the near and far fieldTechniques for applying the NASPROP-E computer code (Bober et al., 1983) to characterize the acoustic field of a transonic propfan are described and demonstrated for the case of the SR-3 propfan. It is pointed out that NASPROP E accounts for the nonlinear quadrupole, monopole, and dipole noise sources. The approach used, based on that of White (1984) and Korkan et al. (1985 and 1986), is described in detail, and the results of simulations employing different (reflective and nonreflective) inflow-outflow boundary conditions and azimuthal mesh spacings are presented in graphs and briefly discussed.
Document ID
19870037670
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Forsyth, D. W. (Texas A&M Univ. College Station, TX, United States)
Korkan, K. D. (Texas A & M University College Station, United States)