Measurements and Computations of External Heat Transfer and Film Cooling in Turbines

Abstract

A review of recent work on turbine heat transfer performed at the RAE(Pyestock) is presented. The work covers the effects of secondary flows on turbine nozzle guide vane heat transfer with and without film cooling. It is shown that the heat load to the platforms (endwalls) are significantly affected by the secondary flow action. The platform film cooling data has been well correlated with flat plate single row film cooling data to within + or - 11%. A three dimensional Navier Stokes computational study of the effects of turbine inlet temperature distortion on the thermo-fluid mechanics within a rotating blade passage is given. It is shown that the temperature distortion is modified within the rotor blade and can be lead to increased pressure side and over tip heat transfer.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1992
Accession Number
ADA250398

Entities

People

  • C. D. Burton
  • K. S. Chana
  • S. P. Harasgama

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Boundaries
  • Boundary Layer
  • Computations
  • Engines
  • Film Cooling
  • Fluid Dynamics
  • Fluid Mechanics
  • Guide Vanes
  • Heat Transfer
  • Mach Number
  • Measurement
  • Reynolds Number
  • Test Facilities
  • Three Dimensional
  • Turbines
  • Turbomachinery

Readers

  • Combustion and Flow Dynamics.
  • Fluid Mechanics and Fluid Dynamics.