Numerischer Vergleich eines Reynolds-skalierten mit einem Mach-ähnlichen Turbinenrotor einer Hochdruckturbine
Numeric Comparison of a Reynolds-scaled turbine rotor with a Mach-similar turbine rotor of a high-pressure turbine
Masterthesis
Background
Fundamental investigations into flow phenomena and interaction mechanisms in modern high-pressure turbines are carried out at the Large Scale Turbine Rig (LSTR). The focus is on a Reynolds-scaled high-pressure turbine rotor, which was scaled using a Mach-like high-pressure turbine test rig. Reynolds scaling offers decisive advantages in experimental investigations, but does not reproduce Mach number effects.
The subject of the thesis is the numerical investigation of a Reynolds-scaled turbine rotor with a corresponding Mach-like turbine rotor with regard to the prediction of loss and interaction mechanisms. Within the scope of the thesis, a suitable methodology is to be developed that allows a comparison of differently scaled rotors under different operating conditions.
Tasks
- Familiarisation and literature research
- Development of a methodology for comparing differently scaled turbine rotors
- Realisation of numerical simulations
- Evaluation and analysis of the numerical results
- Identification of approaches for the transferability of Reynolds-scaled results
- Documentation of the results
