An Experimental Investigation of Low-Pressure Turbine Blade Suction Surface Stresses Using S3F (Preprint)

Abstract

A shear and stress sensitive film (S3F) is employed on the suction surface of an industry standard low-pressure turbine blade. These tests address the optimization of S3F for low-speed air investigations on a curved surface, and are the first measurements of its kind. S3F provides all three stress components on a surface in a single measurement, and is based on 3D elastic deformations of a polymeric film. New composition films have been developed, and results over a range of Re respective of LPT flow conditions illustrate the need for separate films tailored for the local stress levels in each area.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Oct 01, 2006
Accession Number
ADA464651

Entities

People

  • Jim Crafton
  • Mark Mcquilling
  • Mitch Wolff
  • Rolf Sondergaard
  • Sergey Fonov

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Biomedical

DTIC Thesaurus Topics

  • Air Force Research Laboratories
  • Boundary Layer
  • Films
  • Fluid Dynamics
  • Gas Turbines
  • Geometry
  • Materials
  • Measurement
  • Optical Properties
  • Polymeric Films
  • Pressure Measurement
  • Shear Modulus
  • Software Prototyping
  • Three Dimensional
  • Turbine Blades
  • Turbines
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Aerodynamics.
  • Mechanical Engineering/Mechanics of Materials.
  • Thin Film Deposition Science.