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- W2007448910 abstract "Within previous EU projects, possible modifications to the engine architecture have been investigated, that would allow for an optimised aerodynamic or acoustic design of the exit guide vanes (EGV) of the turbine exit casing (TEC). However, the engine weight should not be increased and the aerodynamic performance must be at least the same. This paper compares a state-of-the art TEC (reference TEC) with typical EGVs with an acoustically optimised TEC configuration for the engine operating point approach. It is shown that a reduction in sound power level for the fundamental tone (1 blade passing frequency) for this acoustically important operating point can be achieved. It is also shown that the weight of the acoustically optimised EGVs (only bladings considered) is almost equal to the Reference TEC, but a reduction in engine length can be achieved. Measurements were conducted in the subsonic test turbine facility (STTF) at the Institute for Thermal Turbomachinery and Machine Dynamics, Graz University of Technology. The inlet guide vanes, the low pressure turbine (LPT) stage, and the EGVs have been designed by MTU Aero Engines." @default.
- W2007448910 created "2016-06-24" @default.
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- W2007448910 date "2014-06-16" @default.
- W2007448910 modified "2023-09-27" @default.
- W2007448910 title "Comparison of the Aerodynamics of Acoustically Designed EGVs and a State-of-the-Art EGV" @default.
- W2007448910 doi "https://doi.org/10.1115/gt2014-26090" @default.
- W2007448910 hasPublicationYear "2014" @default.
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