Inlet guide vane dewhistler

摘要

A method and apparatus for eliminating vortex whistle noise in a radial-to-axial compressor intake uses a plurality of vortex-disturbing tabs (110) mounted to the trailing edges of inlet guide vanes (84) and extending into the flow path between adjacent vanes. The tabs (110) are mounted to the guide vane (84) so that the tab (110) is always perpendicular to the guide vane (84), regardless of the vanes angular position.