Accession Number : ADA188028

Title :   Radial Mixing in Turbomachines.

Descriptive Note : Annual rept. 1 Sep 85-31 Aug 86,

Corporate Author : VRIJE UNIV BRUSSELS (BELGIUM) DEPT OF FLUID MECHANICS

Personal Author(s) : DeRuyck, J ; Hirsch, Ch ; Toorman, E

PDF Url : ADA188028

Report Date : 15 Apr 1987

Pagination or Media Count : 80

Abstract : The main tools for the prediction of convective radial mixing are developed. The secondary flows needed for the convective mixing are found from pitch averaged vorticity equations combined with integral methods for the computation of 3d end-wall boundary layers, 3d profile boundary layers and 3d asymmetric wakes. This integral approach requires less approximations than previous radial mixing theories and only three empirical constants are required. The convective mixing coefficient of Adkins and Smith is found from the resulting secondary flow velocities. The method is applied to some standard test cases, where secondary flow patterns are compared with available test data.

Descriptors :   *SECONDARY FLOW, *RADIAL FLOW, COEFFICIENTS, CONSTANTS, CONVECTION, EQUATIONS, EXPERIMENTAL DATA, MIXING, PATTERNS, THEORY, VELOCITY, VORTICES, AXIAL FLOW COMPRESSORS, BOUNDARY LAYER FLOW, THREE DIMENSIONAL FLOW, MATHEMATICAL PREDICTION, VORTICES, BELGIUM

Subject Categories : Fluid Mechanics
      Jet and Gas Turbine Engines

Distribution Statement : APPROVED FOR PUBLIC RELEASE