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Comparison of Labyrinth Seal Calculation and Real Aircraft Turbine Engine Measurement

This paper describes comparison between 3D CFD calculation of labyrinth seal of a turbine engine and measurement of actual advanced turbine engine in test facility. The goal is to verify capability of the 3D CFD modelling and obtain more insight into air flow path in the labyrinth seal. The total temperature was revealed not being a constant value through the labyrinth seal, thus driving design and even service trend monitoring consequences.