ADA2 - Aggressive Duct Aerodynamics Part 2

Purpose and goal

This project will study very short intermediate compressor ducts, focusing on: 1) reduction of experimental test data, 2) validation of flow field prediction methods, 3) interaction between the compressor duct and neighbouring components, such as the upstream compressor, downstream compressor and bleed system, and 4) design of intermediate compressor ducts with passive flow control devices. The project also aims to strengthen national collaboration within Sweden, as well as to strength international academic ties between Sweden and Germany through collaboration there.

Expected effects and result

The results of Work Package 1 are expected to yield a detailed analysis of the experimental data collected from the 2-Spool Compressor Rig testing and the use of this data to validate the prediction methods used to design very short compressor ducts. Similarly the results of WP2 will result in the validation of the CFD methods used to analyse the ICD rig at TU Berlin as well as the optimization of the passive flow control design developed in ADA1 by KTH. The results of both WPs are expected to allow the design of shorter, more efficient compressor ducts which could be used in future engine designs.

Planned approach and implementation

The project is planned to be implemented in two technical Work Packages (WP) led by GKN Aerospace and KTH respectively, and one overall project management Work Package led by GKN. WP1 will be concerned with processing and utilizing experimental data from the Clean Sky 2 2-Spool Compressor Rig project, while WP2, led by KTH, will focus on validation of passive flow control technologies designed by KTH. Within each WP, various individual milestones have been planned and each set of milestones will be finalized by report produced by the responsible party.