Preliminary Estimation of Engine Gas-Flow-Path Size and Weight

Abstract

Subsequent to identifying the optimum engine cycle over a specified baseline design mission, one of the important goals of conceptual design is to translate this into an aerothermomechanically compatible gas-flow-path (GFP) layout and weight estimation, Engine GFP size and weight definition are important design parameters. They define the starting point for detailed component design and the physical limits for integration of the engine with the airframe, This paper describes the mathematical basis of engine GFP sizing and weight estimation, as well as their computer simulation, validation, and application to an optimum engine cycle, which will be typical of the next generation of combat aircraft.