24th Congress of International Council of the Aeronautical Sciences, 29 August-3, September 2004, Yokohama, Japan
Paper ICAS 2004-7.10.2

CFD PREDICTION OF UNSTEADY PRESSURES DUE TO FAN ROTOR-STATOR INTERACTION

H. Kodama, A. Yamagata, N. Tsuchiya, O. Nozaki*, T. Nishizawa*, K. Yamamoto*
Ishikawajima-Harima Heavy Industries Co., Ltd., Japan; *Japan Aerospace Exploration Agency, Japan

Keywords: Aeroengine, Fan Noise, Rotor-Stator Interaction, Unsteady Flow, CFD

Unsteady three-dimensional Navier-Stokes analyses are performed to predict the unsteady pressures induced by rotor viscous wakes on stator vanes. The primary object of this study is to investigate the effects of axial spacing between the rotor and the stator and threedimensional vane geometries such as stator sweep and stator lean on the unsteady pressure fluctuations on the stator vane.

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