Accession Number:

AD0627428

Title:

BOUNDARY LAYER SEPARATION IN INTERNAL FLOW,

Descriptive Note:

Corporate Author:

MASSACHUSETTS INST OF TECH CAMBRIDGE GAS TURBINE LAB

Report Date:

1965-09-01

Pagination or Media Count:

61.0

Abstract:

An investigation of incompressible turbulent boundary layer separation in internal flow is presented with experimental results for a variable geometry, two -dimensional diffuser and two conical diffusers. A simple analytical model is adopted, which consists of wall boundary layers and a one-dimensional, inviscid core. Several approximate boundary layer methods and the possibility of extending them into the separated region are examined. With a limited amount of separated flow, the calculated pressure agrees reasonably well with the experimental results and gives a fair indication of maximum diffuser performance. The limitations of the model to the more general problem, as well as the problem of singularities and downstream stability, are discussed. Author

Subject Categories:

  • Fluid Mechanics
  • Jet and Gas Turbine Engines

Distribution Statement:

APPROVED FOR PUBLIC RELEASE