Accession Number:

ADA071020

Title:

Theoretical Studies of Three Dimensional Transonic Flow through a Compressor Blade Row.

Descriptive Note:

Annual technical rept. 1 Apr 78-31 Mar 79,

Corporate Author:

CALSPAN ADVANCED TECHNOLOGY CENTER BUFFALO NY

Personal Author(s):

Report Date:

1979-03-31

Pagination or Media Count:

12.0

Abstract:

Three-dimensional flow effects play an important role in the performance of axial-flow fans and compressors that operate at transonic speeds. The coupling between transonic and three-dimensional effects limits the applicability of the two-dimensional analysis methods that have been in use for some years. The present research program was undertaken with the aim of extending these numerical techniques, so as to handle more fully the nonlinearity of the problem. Thus, heavily loaded blades with large turning angles are to be considered, and the simplifications of small-disturbance theory such as satisfaction of boundary conditions on mean-chord surfaces, neglect of trailing vortex-sheet deformation will not be used.

Subject Categories:

  • Fluid Mechanics
  • Jet and Gas Turbine Engines

Distribution Statement:

APPROVED FOR PUBLIC RELEASE