In this study, FLUENT v.16.1 was used to investigate the compressible flow generated by the supersonic jet spewed from a high pressure tube. As the boundary condition for CFD (Computational Fluid Dynamics) analysis, the inlet temperature of air was constantly 300 K and the variation of JPR (Jet Pressure Ratio) were 5, 50, 100, 150 and the variation of tube diameter were 10, 20, 30 cm. As a result, it was confirmed that the effective range was increased as the JPR was higher, but it was confirmed that the effective range was lower than the JPR rise, and that the effective range was increased as the diameter was larger. Therefore, it is found that the tube diameter is more sensitive than the JPR among the influence factors of jet, and if the result of this study were reflected in the design of high pressure system, it will contribute to the design of the system for preventing the second accident.
목차
ABSTRACT 1. 서론 2. 이론해석 2.1 해석모델 2.2 수치해석 2.3 난류모델의 타당성 검증 3. 결과 및 고찰 3.1 초음속제트의 유동특성 3.2 제트압력비(JPR)에 따른 유동특성 3.3 튜브직경에 따른 유동특성 4. 결론 References
키워드
High Pressure Tube(고압튜브)Compressible Flow(압축성유동)Supersonic Jet(초음속제트)Shock Wave(충격파)Mach Number(마하수)
저자
정종길 [ Jong-Kil Jung | Department of Mechanical Engineering, Graduate School, Gachon University ]
조정권 [ Jeong-Kwon Cho | Transportation Safety Specialist, TS ]
윤준규 [ Jun-Kyu Yoon | Department of Mechanical Engineering, Gachon University ]
임종한 [ Jong-Han Lim | Member, Department of Mechanical Engineering, Gachon University ]
Corresponding author