Modeling of High Frequency Combustion Instabilities in Rocket Engines (C03)

• Subject Area: Fluid Mechanics ; Technical Thermodynamics
• Term: from 2008 to 2020
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 26293245

Based on the previous successful implementation of a stability analysis procedure the 3rd funding period is dedicated to its further validation and extension. Thereto the overall process of linear stability analysis is applied to the TP C7 BKD test case. Flame transfer functions are validated separately by means of flame radiation, and the modelling depth necessary to obtain reliable flame models is determined. The method is extended to account for nonlinearities e.g. in flame dynamics and acoustic propagation. The scope of ap-plication is extended towards methane engines and global driving and damping mechanisms are studied. In addition, support for TP C7 test campaigns and the development of virtual engine demonstrators is given.

• DFG Programme: CRC/Transregios
• Subproject of: TRR 40: Technological Foundations for the Design of Thermally and Mechanically Highly Loaded Components of Future Space Transportation Systems
• Applicant Institution: Technische Universität München (TUM)
• Project Head: Professor Dr.-Ing. Thomas Sattelmayer