Accession Number:

ADA083905

Title:

Computation of the Turbulent Mixing in Curved Ejectors

Descriptive Note:

Final rept. 1 Sep 1978-31 Aug 1979

Corporate Author:

ROCKWELL INTERNATIONAL COLUMBUS OH NORTH AMERICAN AIRCRAFT OPERATIONS

Report Date:

1980-04-30

Pagination or Media Count:

44.0

Abstract:

A numerical method has been developed to calculate the effects of curvature on the turbulent mixing within a thrust augmenting ejector. Curvature modification are included in both the kinetic energy and dissipation equations of the turbulence model. The elliptic effects of curvature on the mean flow are determined by combining an elliptic solution for the pressure field with a conventional marching solution for the velocity field. Predictions of the velocity profiles for jets and curved duct flows are compared with experimental data. Computation of the curvature effects are shown for an ejector having Coanda jets and one central jet.

Subject Categories:

  • Fluid Mechanics
  • Jet and Gas Turbine Engines

Distribution Statement:

APPROVED FOR PUBLIC RELEASE