Accession Number:

ADP005515

Title:

A Quasi Three Dimensional Method for the Calculation of Transonic Flows in Turbomachines,

Descriptive Note:

Corporate Author:

STUTTGART UNIV (GERMANY F R) INST FUER LUFTFAHRT-ANTRIEBE

Personal Author(s):

Report Date:

1987-03-01

Pagination or Media Count:

12.0

Abstract:

A procedure based on the iterative coupling of flow calculations on S1 blade-to-blade stream surfaces and a flow calculation on an S2 hub to tip stream surface is described. The solutions on S1 surfaces of revolution are obtained by a time marching method in finite volume form, whereas a finite difference method is used for the S2 calculation. The finite difference method uses a stream function formulation based on a passage averaging technique in order to account for non-axisymmetric flows, especially with shocks inside a blade row. Sample calculations of a single stage and a two stage compressor are presented and compared with measurements.

Subject Categories:

  • Fluid Mechanics
  • Hydraulic and Pneumatic Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE