Проектирование затурбинного устройства среднеразмерного двигателя

Abstract

Exhaust diffuser of medium gas turbine engine with a high swirling flow at the exit of the low pressure turbine (LPT) is investigated. Authors propose a design of LPT exhaust diffuser in which the swirling gas flow straightening and mixing with air from fan duct at the same time. Comparison between nozzles with original and new exhaust diffusers showed that thrust increased by 2.2% in second case.