고압튜브 내에서 분출되는 공기의 압축성유동 특성에 관한 수치해석 연구
A Numerical Study on the Compressible Flow Characteristics of Air Spewed from a High Pressure Tube
1
조회
0
다운로드
1
인용
0
참고문헌
키워드
초록
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.
Abstract
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.
참고문헌 (12)
- 이상열, "고압 세척기의 분사 노즐에 관한 연구", 한국기계기술학회지, 17(3), pp.559~564 (2015), 한국기계기술학회
- C. S. Kim, "Cooling of the Air Jet Impingement using cold air induced by the Vortex Tube", Journal of Korea Society of Mechanical Technology, 7(4) (2005)
- C. S. Kim, "The Study of Optimization of Length in the Vortex Tube", Journal of Korea Society of Mechanical Technology, 8(4) (2006)
- 권순덕, "수치계산에 의한 2차원 초음속 노즐에서 압력비와 길이비에 따른 흐름 특성", 한국항공우주학회지, 35(4), pp.281~286 (2007), 한국항공우주학회
- 감호동, "초음속 노즐 유동의 최적해석을 위한 난류모델의 평가와 선정", 한국추진공학회지, 17(1), pp.18~25 (2013), 한국추진공학회[DOI]
- J. S. Nam, "Study on the flow hysteresis phenomenon in supersonic nozzle", Proceedings of the Korean Society of Mechanical Engineers, pp.3125~3130 (2012)
- 남종순, "초음속 노즐에서 발생하는 유동 이력현상에 대한 실험적 연구", 한국추진공학회지, 16(2), pp.58~64 (2012), 한국추진공학회[DOI]
- T. S. Lee, "Experimental study of supersonic impinging jet as to shock interactions", Journal of the Korean Society for aeronautical and Space Sciences, 29(4), pp.1~7 (2001)
- 박진욱, "Micro Shock Tube에서 발생하는 충격파 실험", 한국추진공학회지, 17(5), pp.54~59 (2013), 한국추진공학회[DOI]
- K. Mohamed, "Real gas numerical simulation of hydrogen flow", International Energy Conversion Engineering Conference Technical, pp.727~740 (2004)
- F. R. Menter, "Two-equation eddy-viscosity turbulence models for Engineering applications", AIAA, 32(8), pp.1598~1605 (1994)
- J. D. Anderson, "Fundamentals of aerodynamics", pp.515~543 (2011), Mcgraw hill