Numerische Simulation einer Filmkühlausblasung mittels Large-Eddy-Simulationen

Task

The cooling of thermally highly stressed components plays a key role in modern gas turbines and aircraft engines. At ITS, the cooling air-hot gas interaction during film cooling blow-out is experimentally investigated using stereoscopic particle image velocimetry (SPIV) to measure time-resolved velocity fields in the region from the film cooling bore.

Experimental measurements allow only limited information to be extracted from the flow (e.g. 2D velocity fields of the inflow/outflow). A numerical simulation, on the other hand, makes it possible to investigate and evaluate the flow with high temporal and spatial resolution and to visualize the flow within the borehole. In the course of this work, a simulation is to be set up for the inflow and outflow from the film cooling borehole. This will be validated using the existing experimental data and then evaluated.

 

The work consists of the following work packages:

  • Familiarization with the topics of film cooling, CFD and LES in particular
  • Creation of a computer network
  • Carrying out preliminary studies and overall simulation
  • Validation and evaluation of the results