Diagnostics of Flow Suppression on Rotor Blades: Final Report

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.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Sep 30, 2009
Accession Number
ADA509447

Entities

People

  • James Diottavio
  • Narayanan M. Komerath
  • Vrishank Raghav

Organizations

  • Georgia Tech

Tags

DTIC Thesaurus Topics

  • Axial Flow
  • Boundary Layer
  • Flow
  • Flow Visualization
  • Fluid Dynamics
  • Fluid Mechanics
  • Measurement
  • Mechanical Properties
  • Particle Image Velocimetry
  • Radial Flow
  • Radial Velocity
  • Reynolds Number
  • Stratified Fluids
  • Three Dimensional
  • Turbulent Mixing
  • Two Dimensional
  • Wind Tunnels

Fields of Study

  • Physics

Readers

  • Aerodynamics.
  • Technical Research and Report Writing.