For decreasing the transportation costs into the orbit, two staged propulsion systems with an air breathing lower grade is seen as a promising alternative to rocket-based systems. The problem realizing such a kind of propulsion is the short residence time of the gas mixture in the combustor. In this work, investigations using different injectors for mixing and flame stabilization were conducted. Therefore, it was necessary to reproduce the conditions of a supersonic flight correctly in order to exclude any falsification of the experimental data. As a result of these investigations, a new injector was designed, which permits a low-loss flame stabilization over a broad range of flight Mach number compared with conventional concepts.
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For decreasing the transportation costs into the orbit, two staged propulsion systems with an air breathing lower grade is seen as a promising alternative to rocket-based systems. The problem realizing such a kind of propulsion is the short residence time of the gas mixture in the combustor. In this work, investigations using different injectors for mixing and flame stabilization were conducted. Therefore, it was necessary to reproduce the conditions of a supersonic flight correctly in order to...
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