The PERseuS project aims to support the development of environment-friendly aircraft engines. The focus of the investigations is on reducing nitrogen oxide emissions and soot emissions. The objective in Perseus is determined by the new legal requirements for the emission of soot and nitrogen oxides (NOx). Effective blending concepts for liquid fuels in the combustion chamber are to be investigated.

A new holistic approach in the field of methods is to be developed. New fuel placement models are to be validated using advanced measurement technology on the spray test bench. For this purpose, DLR has a measuring section available in the form of the Optical High-Pressure Atomizer Test Facility OHZ, which allows unique optical measurements of the spray distribution to be carried out. For example, the spray is to be illuminated and the Mie scattering detected at high speed in order to document the fuel placement. This method will be used for the first time at high speed in this context. Furthermore, the droplet size and velocity are to be determined with the aid of PDA.

In order to resolve the possibly non-spherical droplets particularly close to the burner outlet, the tomographic shadowgraphy method is to be further developed in this project. It is expected that data can be generated with this method, which represents a major step for the validation of the modeling. In order to compare these results with the modeling, the air flow will be measured with PIV to ensure that the experiment matches the modeling. The fuel nozzle is being developed specifically for the project in close cooperation with CFD.