INFLUENCE OF INGESTED GAS CROSSFLOW ON THE FORMATION AND STRUCTURE
OF SECONDARY FLOWS IN THE BLADE PASSAGE OF A GAS TURBINE

K. N. Volkov

UDC 532.529

This paper considers the influence of the mass flow of 
the gas ingested from the cavity formed by the rotor-to-stator clearance 
on the formation and structure of secondary flows in the blade passage 
of the gas-turbine stage. The flow is described by the Reynolds-averaged 
Navier<196>Stokes equations, to close which the Spalart-Allmaras 
model and the k -  model of turbulence with 
corrections for the rotation and curvature of the streamlines are 
used. Comparison of the results of the numerical simulation obtained 
from the point of view of different turbulence models is made.

University of Surrey, Guilford, Gu2 7XH, United Kingdom; 
email: dsci@mail.ru. Translated from Inzhenerno-Fizicheskii 
Zhurnal, Vol. 81, No. 4, pp. 721-731, July-August, 2008. Original 
article submitted November 29, 2006.