Analytical Study of Flow Reduction Due to Oxidation of Wire-Form Porous Sheet for Transpiration Cooled Turbine Blades

Abstract

Cyclic and static oxidation data for wires of N155 Driver-Harris 242, TD nickel-chromium, and Hastelloy X from 1400 deg F (1033 K) to 2000 deg F (1367 K) were used to determine flow reduction effects for pore diameters from 10 to 100 microns and exposure times up to 600 hours. Analytical results were compared with experimental flow reduction data for oxidized wire-form porous sheets from other investigators. Conclusions were drawn as to the suitability of these materials for transpiration cooling with a metal temperature of 1800 deg F (1255 K).

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1969
Accession Number
ADA382233

Entities

People

  • Albert Kaufman

Organizations

  • National Aeronautics and Space Administration

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Breathing
  • Air Breathing Engines
  • Contracts
  • Cooling
  • Cyclic Tests
  • Experimental Data
  • Flow Rate
  • Materials
  • Mechanical Properties
  • Multiplication Factor
  • Oxidation Resistance
  • Porous Materials
  • Resistance
  • Standards
  • Steady State
  • Turbine Blades
  • Turbines

Fields of Study

  • Chemistry

Readers

  • Fluid Dynamics.
  • Surface Engineering/Surface Coating Technology.
  • Thermal Physics or Thermal Science.