Скачать или смотреть Rotor-Stator-Cascade: IDDES simulation of interaction noise, spanwise vorticty (plain)

IDDES simulation of rotor-stator broadband interaction noise (without comments), simplified periodic 1-1 rotor-stator setup

display: spanwise vorticity component in blue-red color scale overlayed on pressure pertubations in gray color scale on slice at midspan -- the strong inhomogeneous wakes passing the outlet guide vanes (OGVs) and generate the broadband noise content

remark: vorticity is blanked near sliding meh interface due to postprocessing artefacts near interface

facts: IDDES (hybrid RANS-LES), Re=200.000, fan at nominal loading with tip Ma=0.220, simplified setup with 1 rotor blade and 1 stator vane (orig. fan 24/30), spanwise extent: 0.344 chord, finite volume CFD solver (Navier-Stokes), compressible simulation with acoustics, translating frame of reference combined with sliding mesh interface, grid about 14.5 mill. cells, simulation from 2011/2012

specials: IDDES, turbomachinary, fan, RFOR, sliding mesh interface, compressible, broadband noise

related publication : http://arc.aiaa.org/doi/abs/10.2514/6...