Pressure-Sensitive-Paint Measurements in a Commercial Jet-Engine Test Stand

Abstract

This paper presents the application of pressure-sensitive paint (PSP) measurement technology to a large-scale commercial turbine-engine test stand. In this work, the test article is the engine-inlet bell mouth. A sol-gel-based PSP is applied to the inlet and illuminated using the blue (460-nm) output of eleven LED arrays. PSP data are acquired using a scientific-grade CCD camera. The application of PSP measurements in the engine-test-stand environment requires test instrumentation to be fixed within a housing located upstream of the test article. Challenges associated with performing PSP measurements in this hostile environment are discussed, with focus on the strategies implemented to recover surface-pressure distributions on the engine-inlet bell mouth.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1999
Accession Number
ADA421561

Entities

People

  • A. N. Watkins
  • Jeffrey D. Jordan
  • John C. Davis
  • William L. Weaver

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies
  • Space

DTIC Thesaurus Topics

  • Air Force
  • Air Force Research Laboratories
  • Charge Coupled Devices
  • Computational Fluid Dynamics
  • Films
  • Government Procurement
  • Governments
  • Image Registration
  • Instrumentation
  • Measurement
  • Measuring Instruments
  • Pressure Distribution
  • Pressure Measurement
  • Test Stands
  • Three Dimensional
  • Turbines
  • Two Dimensional

Readers

  • Aerospace Engineering
  • Fluid Dynamics.
  • Image Processing and Computer Vision.