Accession Number:

ADA509447

Title:

Diagnostics of Flow Suppression on Rotor Blades: Final Report

Descriptive Note:

Final rept. 1 Jun 2004-31 Jul 2008

Corporate Author:

GEORGIA INST OF TECH ATLANTA OFFICE OF SPONSORED RESEARCH

Report Date:

2009-09-30

Pagination or Media Count:

37.0

Abstract:

In a 4-year project, the radial flow phenomena in the stalled region of rotor blades typical of retreating-blade stall were investigated. First a partial inflow obstructor was devised in order to create transient flow separation on a rotor blade in a hover facility. Next, a 2-bladed teetering rotor rig was designed, built and operated at high advance ratios appropriate for dynamic stall, in the John Harper Low Speed Wind Tunnel at Georgia Tech. The nature of the flow induced near the surface by radial stresses in the stalled flowfield, was examined using Particle Image.

Subject Categories:

  • Hydraulic and Pneumatic Equipment
  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE