Experimental study of jet mixing mechanisms in a model secondary combustor
作者： N. Ishikawa
DOI: 10.2514/3.8114
关键词: Total pressure 、 Reynolds number 、 Total air temperature 、 Mach number 、 Static pressure 、 Combustor 、 Engineering drawing 、 Nozzle 、 Mechanics 、 Ramjet 、 Materials science
摘要: A schlieren photographic study of flow characteristics in a secondary combustor rocket/ramjet with side intakes has been made two-dimensiona l mixing duct. The experiments were conducted by means airflows, primary jet, and two crossflows up to Reynolds number 10 6. patterns the early stage processes observed under variety conditions. Effects bluff body on also examined. results show that rate seems strongly dependent interaction Coanda-type vibrating jet flows acting as its stabilizer. It was seen present can delay depending condition. Nomenclature b f F H k L M n P = cross-sectional area bluff-body height —area ratio, As/Am Ab/As cross section duct specific heat ratio size recirculation zone Mach weight Wal Wp - static pressure total temperature axial distance from nozzle
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