Hy2C : Aerodynamic robustness of highly efficient compact compressor stages of new architecture
The aim of the project Hy2C is to perform a robustness study on a highly efficient tandem stage compressor , FRANCC designed at LTF.
Incorporating the concept of GLH, a high-performance aerodynamic optimization of various single and tandem airfoils is then performed under steady-state and transient inflow conditions. For the 2D optimization, the meta-heuristic optimizer AutoOpti of DLR is used. Based on these results, a numerical analysis of the effectiveness of different surface structures for passive GLS is performed. The numerical investigations conclude with the simulation of the developed GLH tandem profile type in the environment of a highly-loaded compressor stage.
The experimental work includes the validation of the numerically developed high-lift profiles in the low-speed cascade test at steady-state and transient inflow conditions. Here, a reference single profile, a high-lift single profile with GLS and a high-lift tandem profile with GLS are analyzed.
Aim/Objective
- Investigation of the influence of variation of rotor running gap width.
- Investigation of the influence of stator cavity sealing gap width and number of sealing teeth’s.
- Investigation of the influence of variation of inlet boundary layer/ Pt profile
- Experimental investigation of the defined variations on FRANCC.
