Rotor Testing

Prototypical brush seal test facility (ProBe)
The operating behaviour of brush seals can be analysied in detail with ProBe to validate prediction modells for using the seals in hydrogen gas turbines.

The topic of rotor test facilities encompasses the design, development and operation of rotating test stands. These facilitate experiments that take into account the rotational influence of components, subsystems and phenomena of turbomachinery. The goal is to be able to reproduce realistic conditions using full-scale components. The areas of research include investigations of the influence of rotation on the gas flow and on the component structure, the heat transfer to the component, as well as their interactions and wear.

A particular focus is placed on the characterization of the secondary systems in the engine with regard to the aero-thermal behaviour and the service life of components. The test facilities are integrated both physically and as digital twins into the virtual engine of the institute and the DLR. A close exchange of data between testing and simulation aims to validate the numerical models in real time.