A three-dimensional Navier-Stokes solver has been extended to include multi-row capability. The coupling between the various rows is implemented by means of mixing planes. Those planes are handled by retaining the radial distortions while mass-averaging in the pitch-wise direction. The code is applied to a two-stage, heavy-duty gas turbine at design conditions. A comparison of pitch-averaged quantities between blade rows with preliminary measurements and with through flow analysis is presented along with a discussion of the flow features in terms of secondary flows. Using roughly half a million grid points, an operating condition can be examined in about an hour on a modem supercomputer.
Three–Dimensional Navier–Stokes Analysis of a Two–Stage Gas Turbine / Arnone A.; Benvenuti E.. - STAMPA. - 1: Turbomachinery:(1994), pp. 1-8. (Intervento presentato al convegno ASME 1994 International Gas Turbine and Aeroengine Congress and Exposition tenutosi a The Hague, The Netherlands nel June 13–16) [10.1115/94-GT-088].
Three–Dimensional Navier–Stokes Analysis of a Two–Stage Gas Turbine
ARNONE, ANDREA;
1994
Abstract
A three-dimensional Navier-Stokes solver has been extended to include multi-row capability. The coupling between the various rows is implemented by means of mixing planes. Those planes are handled by retaining the radial distortions while mass-averaging in the pitch-wise direction. The code is applied to a two-stage, heavy-duty gas turbine at design conditions. A comparison of pitch-averaged quantities between blade rows with preliminary measurements and with through flow analysis is presented along with a discussion of the flow features in terms of secondary flows. Using roughly half a million grid points, an operating condition can be examined in about an hour on a modem supercomputer.I documenti in FLORE sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.