Numerical simulation of film cooling in supersonic flow (A04)

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

Film cooling of a rocket nozzle extension is investigated using direct numerical or large-eddy simulations of the two-component-gas turbulent boundary-layer flow. The simulations of cooling-gas injection through a backward-facing-step slit or by slots or holes at the wall are closely coordinated with the shock-tunnel ex-periments at the RWTH Aachen (sub-project A2) employing gaseous H2O as hot gas and N2, CO2, He, Ar as coolant. The work is aimed at concluding in recommendations for the practical application of film cooling in the nozzle extension, and working out numerical-method and modelling specifications for the demonstrator-concept subproject K4, gained by a combined experimental and numerical effort.

• 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: Universität Stuttgart
• Project Head: Dr.-Ing. Markus J. Kloker