ARDYANMALI VE AYRIK AKIŞLI TURBOFANLARDA FAN BASINÇ ORANI VE BYPASS ORANIYLA TOPLAM VERİMİN DEĞİŞİMİNİN İNCELENMESİ

Abstract

Overall efficiency is an important design parameter of the engine in preliminary design and defined as the ratio of aircraft thrust power to the rate of thermal energy released in the engine. In this paper, effects of the fan pressure ratio and the bypass ratio on engine overall efficiency were investigated for afterburning and separate flow turbofans. With this purpose, fan pressure ratio⎯bypass ratio⎯overall efficiency three dimensional graphs were developed and then computer experiment results were evaluated for three different flight Mach number.

Keywords

• Separate flow turbofan
• Afterburner
• Overall efficiency
• Aircraft propulsion