Navier–Stokes Simulation of Transonic Blade-Vortex Interactions

[+] Author and Article Information
N.-S. Liu, F. Davoudzadeh, W. R. Briley, S. J. Shamroth

Scientific Research Associates, Inc., Glastonbury, CT 06033

J. Fluids Eng 112(4), 501-509 (Dec 01, 1990) (9 pages) doi:10.1115/1.2909435 History: Received March 22, 1990; Online May 23, 2008


Transonic strong blade-vortex interaction is numerically analyzed by solving the unsteady 2-D Navier–Stokes equations using an iterative implicit second order scheme. The dominant processes during the interaction are the development of large transverse pressure gradients in the upper leading edge region and the development of disturbances at the root of the lower surface shock wave. As a result of this interaction, high pressure pulses are emitted from the leading edge, and acoustic waves are radiated from the lower surface in a region originally occupied by a supersonic pocket. In addition, severe load variations occur when the vortex is within one chord length of the blade.

Copyright © 1990 by The American Society of Mechanical Engineers
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