Experimental study on the improvement of injection of parallel injector for supersonic mixing

Shingo Kawano; Kei Inoue; Shigeru Aso

Experimental study on the improvement of injection of parallel injector for supersonic mixing

Shingo Kawano, Kei Inoue, Shigeru Aso

Space Systems Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

A study on the mixing of air and the secondary gas is conducted experimentally in order to develop the design of SCRAM-jet engine. Two methods of injection are compared. In the present study, sonic Helium gas is injected into supersonic air flow of M∞ = 3.76. Flow visualization (Schlieren photographs and oil flow technique) and volume fraction measurements are conducted in the experiments. From the volume fraction measurements, it is turned out that the injection from the upper face of the ramp injector is superior in the supersonic mixing to the injection from the rear face of the ramp injector.

Original language	English
Pages (from-to)	33-39
Number of pages	7
Journal	Memoirs of the Faculty of Engineering, Kyushu University
Volume	62
Issue number	1
Publication status	Published - Mar 1 2002

All Science Journal Classification (ASJC) codes

Energy(all)
Atmospheric Science
Earth and Planetary Sciences(all)
Management of Technology and Innovation

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abstract = "A study on the mixing of air and the secondary gas is conducted experimentally in order to develop the design of SCRAM-jet engine. Two methods of injection are compared. In the present study, sonic Helium gas is injected into supersonic air flow of M∞ = 3.76. Flow visualization (Schlieren photographs and oil flow technique) and volume fraction measurements are conducted in the experiments. From the volume fraction measurements, it is turned out that the injection from the upper face of the ramp injector is superior in the supersonic mixing to the injection from the rear face of the ramp injector.",

author = "Shingo Kawano and Kei Inoue and Shigeru Aso",

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N2 - A study on the mixing of air and the secondary gas is conducted experimentally in order to develop the design of SCRAM-jet engine. Two methods of injection are compared. In the present study, sonic Helium gas is injected into supersonic air flow of M∞ = 3.76. Flow visualization (Schlieren photographs and oil flow technique) and volume fraction measurements are conducted in the experiments. From the volume fraction measurements, it is turned out that the injection from the upper face of the ramp injector is superior in the supersonic mixing to the injection from the rear face of the ramp injector.

AB - A study on the mixing of air and the secondary gas is conducted experimentally in order to develop the design of SCRAM-jet engine. Two methods of injection are compared. In the present study, sonic Helium gas is injected into supersonic air flow of M∞ = 3.76. Flow visualization (Schlieren photographs and oil flow technique) and volume fraction measurements are conducted in the experiments. From the volume fraction measurements, it is turned out that the injection from the upper face of the ramp injector is superior in the supersonic mixing to the injection from the rear face of the ramp injector.

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