ROCKET ENGINE HIGH ALTITUDE COMBUSTION TEST EQUIPMENT, AND METHOD OF OPERATING ROCKET ENGINE HIGH ALTITUDE COMBUSTION TEST EQUIPMENT

摘要

PROBLEM TO BE SOLVED: To prevent flowback in stopping a rocket engine even in a case when a scale of the engine is large.SOLUTION: In rocket engine high altitude combustion test equipment 1 having a low pressure chamber 2 accommodating a rocket engine 5 injecting a combustion gas, and an exhaust device 3 configuring a flow channel of the combustion gas, the exhaust device 3 has a diffuser 10 having a throat portion 15 connected to the low pressure chamber 2 and having a constant flow channel cross-sectional area along a flowing direction of the combustion gas, and an expanded portion 16 connected to a downstream side of the throat portion 15 and having a flow channel cross-sectional area expanded toward a downstream side in a flowing direction of the combustion gas, and an annular ejector 11 disposed on the throat portion 15, and jetting a gas from a peripheral wall of the throat portion 15, so that the flowback in stopping a rocket engine is reduced in the rocket engine high altitude combustion test equipment 1.SELECTED DRAWING: Figure 1