| Issue |
Volume 8, 2016
Progress in Propulsion Physics
|
|
|---|---|---|
| Page(s) | 129 - 144 | |
| Section | Liquid and electric space propulsion | |
| DOI | https://doi.org/10.1051/eucass/201608129 | |
| Published online | 06 July 2016 | |
Numerical and experimental investigation of the methane film cooling in subscale combustion chamber
1
Japan Aerospace Exploration Agency JAXA's Engineering
Digital Innovation Center (JAXA/JEDI) 2-1-1 Sengen,
Tukuba, Ibaraki
305-8505,
Japan
2
University of Tokyo 2-11-16 Yayoi, Bunkyo,
Tokyo
113-8656,
Japan
3
Deutsches Zentrum für Luft- und Raumfahrt (DLR)
Institute of Space Propulsion Hardthausen
74239,
Germany
The characteristics of film cooling in a CH4/O2 subscale chamber with multiinjector elements and two kinds of film cooling slot dimensions are investigated using a calorimeter chamber in experiments and simulations, in which the finite rate chemistry with a reduced CH4/O2 reaction mechanism is taken into account. The computed wall heat flux and pressure distributions are compared to the experimental results, which overall show good agreement. A large slot dimension is shown to induce mixing with core flow. This mixing causes a low heat-flux distribution near face plate along with high combustion efficiency.
© Owned by the authors, published by EDP Sciences, 2016