An infuence of structural parameters describing mixing zone of annular combustion chamber for gas-turbine engine on non-uniformity of temperature field at outlet of the chamber

Аuthors

Diachenko D. A.

Moscow Machine Building Enterprise named after V.V.Chernyshev, 7, Vishnevaya St., Moscow, 125362, Russia

Abstract

Experimental investigations are described for an annular combustion chamber of gas-turbine engine. The investigations are aimed to decrease a hoop temperature distribution before the turbine on a combustion chamber test bench. Ensuring of sufficient penetration depth of air jets into the flow in a mixing zone is used to assure required temperature distribution. Relations between hoop non-uniformity of temperature field and some influencing factors are analyzed. These factors include air consumption, hole pitch as well as relative momentum for delivered air on conditions that temperature field is uniform before the mixing zone.