In:
Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy, SAGE Publications, Vol. 213, No. 4 ( 1999-06-01), p. 243-261
Abstract:
In this paper a three-dimensional computational methodology for multistage turbomachinery flows is developed, validated and applied in analysing the reduced mass flowrate operation of a four-stage turbine. The flow is modelled by the three-dimensional Favre-Reynolds-averaged Navier-Stokes equations using the Launder-Sharma near-wall k-ɛ turbulence closure, which are integrated using an implicit third-order upwind solver. The computation models the eight blade rows, including the tip clearance gaps of the rotors, using a 6 × 10 6 points grid, and computes the time-averaged flow using mixing planes between rows. Computational results are compared with measurements for various operating points. After this validation the method is used in a first attempt to analyse the three-dimensional flow at reduced-mass-flow operation.
Type of Medium:
Online Resource
ISSN:
0957-6509
,
2041-2967
DOI:
10.1243/0957650991537590
Language:
English
Publisher:
SAGE Publications
Publication Date:
1999
detail.hit.zdb_id:
2024892-1
Permalink