Pre-swirl system has an indispensable role to supply enough cooling air with appropriate
pressure, temperature, and mass flow rate to improve the life and the efficiency of turbine …

Multiple unexpected uncertainty factors can occur when measuring gas turbine engine data,
and the quality of the measured data can directly affect the accuracy of gas turbine engine …

The sealing flow will inevitably affect the cooling airflow quality in a second air system of an
aero-engine. In this study, theoretical derivation and numerical simulation were conducted to …

Rim-seals are exposed to one of the most complex flows in modern high-efficiency gas
turbines. The flow physics in the vicinity of rim-seals should be understood before predicting …

Focusing on the internal flow and heat transfer analysis, a platform for the performance
evaluation of the Secondary Air System (SAS) is developed. A multi-fidelity modeling …

This book places particular emphasis on issues of model quality and ideas of model testing
and validation. Mathematical and computer-based models provide a foundation for …

The modelling of compressor interstage bleed in a gas turbine is required at all phases of
the engine design cycle. The effect of the physical geometry of the bleed offtake on …

The behaviour of the jet engine during transient operation and specifically its secondary air
system (SAS) is the point of this work. This paper presents a methodological approach to …

Abstract The Secondary Air System (SAS) plays an important role in the safe operation and
performance of aeroengines. The traditional 1D-3D coupling method loses information when …

The life assessment and the efficiency of turbine cooling blades and vanes are seriously
affected by the cooling air delivery system of a gas turbine. The pre-swirl system in a gas …