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·2025
Cryogenic Spray Characteristics of a Multi-Slit Type Gas–Liquid Pintle Injector With Different Pintle Tip Configurations
Subeom Heo, Juhwan Jeong, Inho Kim, Dae Hwan Kim, Youngbin Yoon, Bok Jik Lee
초록

This paper describes cryogenic spray characteristics of a multi-slit type throttleable gas–liquid pintle injector with different pintle tip configurations. Spray characteristics including spray angle and pressure drop of cryogenic spray from the pintle injector were measured and analyzed through cold flow experiment using gaseous nitrogen and liquid nitrogen. The experimental results show that the cryogenic spray characteristics of pintle injectors are significantly different from the previously reported atmospheric spray characteristics, including effects of pintle tip configurations.

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InjectorMaterials scienceSlitOpticsMechanical engineeringEngineeringPhysics
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2025