Task

Increasing the efficiency of modern jet engines not only relates to the main flow path, but also to the secondary air and oil system. Within the oil system, the bearing chamber is one of the most challenging components The bearing chamber forms the interface between the pure oil flow and the secondary air system. A complex mixture of air and oil flow takes place inside the chamber. Due to the flow of sealing air and the rotation of the shaft, a complex gas flow is created in the chamber.

In this master's thesis, the flow within a generic engine bearing chamber is to be investigated with the aid of the Volume of Fluid (VoF). In addition to a comprehensive literature and data research, a phenomenological analysis of the physical processes in the air and oil flow is to be carried out. Important influencing parameters and physical target variables should be identified, which are important for the analysis and simulation of bearing chambers.

Required skills:

• Enthusiasm for fluid mechanics, numerical simulations and computer-aided modeling
• Sense of responsibility and initiative
• Previous knowledge of CFD is an advantage