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Multi-disciplinary conceptual design of future jet engine systems

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Multi-disciplinary conceptual design of future jet engine systems ( multi-disciplinary-conceptual-design-future-jet-engine-syste )

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Konstantinos G. Kyprianidis Framework Development and technological scenarios. FAA (Federal Aviation Administration) is currently sponsoring the development of ETS (Environmental Tool Suite), a larger suite of tools of which EDS is part of. The main aim of this effort is to conduct research, and develop, verify, and validate analytical tools to better understand the rela- tionship between noise and emissions and different types of emissions, as well as to provide the cost benefit analysis capability necessary for data-driven decision making. ETS is intended to be used for supporting the FAA domestic anal- yses and ICAO CAEP (International Civil Aviation Organisation, Committee on Aviation Environmental Protection) analyses, and therefore decision making with respect to long term and global legislation [19]. Genesis is a gas turbine aerodynamic and mechanical design tool developed by Rolls-Royce; it can be used to define the basic engine geometry, as well as pre- dict engine weight and cost using correlations based on a database of Rolls- Royce engines. A preliminary design process for military engines that utilises a hybrid combination of Genesis, RRAP (Rolls-Royce Aerothermal Performance) and other tools is presented in Jones et al. [20]. The tool developed can be used to quickly define and refine gas turbines engines within a design procedure that considers engine performance attributes as well as Through Life Costs (TLC). MTU Aero Engines’ software package for the preliminary design of airborne and stationary gas turbines, MOPEDS (MOdular Performance and Engine De- sign System), is described by Jeschke et al. [21]. The tool can perform multi- disciplinary and multi-point analysis considering all major gas turbine engine components and their interrelations. The transition from the preliminary design phase to the detailed design phase is also handled by the system, with prelim- inary design results being transferred to higher fidelity 1D and 2D models for detailed component design. The GISMO software, as described by Avella ́n and Gro ̈nstedt [22], is a generic simulation and modelling environment for conceptual design and analysis of air- craft and engines. Engine performance and weight predictions are first carried out with the GeSTPAn (General Stationary and Transient Propulsion Analysis) code [23], and the results are then transferred to the aircraft design modules for further analysis; this is an iterative process, with the engine and aircraft be- ing redesigned in every loop, and is repeated until all the aircraft performance requirements set are satisfied. 11

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