Film cooling in rocket nozzles (A02)

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

Experiments will be performed with a nozzle of rotational symmetry varying the most important flow parameters. Based on the achieved results, existing models for the film cooling efficiency will be extended for a flow with a negative pressure gradient. Experiments with transpiration cooling will allow a direct comparison of the film and transpiration cooling efficiency for identical flow conditions. Concerning new nozzle concepts, the influence of a contour kink of a dualbell nozzle on the cooling film stability will be studied.

• 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)
• Co-Applicant Institution: Rheinisch-Westfälische Technische Hochschule Aachen
• Project Head: Professor Dr.-Ing. Herbert Olivier