Researches of influence geometrical and gas dynamics parameters on expense factor in ring cracks

Аuthors

Krylov B. A.

Moscow Aviation Institute (National Research University), 4, Volokolamskoe shosse, Moscow, А-80, GSP-3, 125993, Russia

e-mail: agulnik@mai.ru

Abstract

Results of experimental, settlement research of influence geometrical, gas dynamics parameters on expense factor () in ring cracks (RT) are resulted. Are presented the theoretical formula of calculation  in RT, and on the basis of experiments the empirical formula of the account of mutual influence of district speed, a radial backlash, pressure decline degree on  in RT is received.

Keywords:

ring cracks, axial turbine stages, consumption coefficients, clearances.