USEIT - Ultra Short Engine low-pressure turbine Interactions with Turbine rear structure

Important results from the project

Both enhanced and more extended aerodynamics and thermal measurements were gathered from the LPT-OGV rig on a contemporary state-of-the-art Turbine Rear Structure (TRS); so the goals of the project were met. This made possible to deepen the understanding of flow interactions between Low Pressure Turbine (LPT) and Outlet Guide Vanes (OGV) of a state-of-the-art (TRS). Another important result is that now GKN has a stronger relationship with the internationional partner.

Expected long term effects

One of the most significant expected effect on the long term is that GKN, with the collaboration of Chalmers, will be more involved and active in the decision making process of a future product development phase together with the international partner. This because, the skills and knowledge gained in this project are gathered by the partners exclusively and it will be used to design a super efficient next generation TRS that will help reduce the overall emissions of a turbofan engine.

Approach and implementation

All the planned activities were executed during the timeframe of the project: 1) static pressure in LPT-OGV interface, 2) analysed interactions of LPT disk cavity with OGV, 3) collected heat transfer measurements in LE of OGV, 4) deepened the knowledge on implementing a novel heat transfer transient measurement and validated the first three points with the analysis tools and processes in place at GKN Aerospace.