DEFINITION:

The studies of turbomachinery aerodynamics aim to reduce the number of stages and the number of blades in keeping good performances in the thermodynamic cycle. The improvements of compressors and turbines are obtained in taking in account aerodynamic requirements but also mechanical and thermal constraints. For the aerodynamic part, the interactions between the stages are studied in order to evaluate the efficiency of the engine in all the flight envelope and to predict the phenomena onset at the limits of this domain : surging, rotating separation. The optimisation of the blades needs the knowledge of the geometrical effects like tip clearance on performances.

(Source: ACARE Domain 302)

SUBDOMAINS:

1. Computational Fluid Dynamics
2. Wind Tunnel Testing
3. Tip clearance effect
4. Heating flux
5. Surging
6. Rotating stall