대한기계학회논문집B (Transactions of the Korean Society of Mechanical Engineers B)

  • 제29권2호
  • /
  • Pages.197-204
  • /
  • 2005
  • /
  • 1226-4881(pISSN)
  • /
  • 2288-5324(eISSN)
대한기계학회 (The Korean Society of Mechanical Engineers)
권호 표지
DOI QR코드

DOI QR Code

부족팽창 습공기제트에 관한 수치해석적 연구

A Computational Analysis of the Under-Expanded Moist Air Jet

  • 백승철 (한국원자력연구소 열수력안전연구부) ;
  • 송철화 (한국원자력연구소 열수력안전연구부) ;
  • 세토구치 (일본 사가대학교) ;
  • 김희동 (안동대학교 기계공학부)
  • 발행 : 2005.02.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

The under-expanded jet discharged from a nozzle or an orifice has been extensively employed in industrial applications and aerospace technologies. A number of studies have been made to investigate the under-expanded jet structures such as Mach disk, barrel shock wave, jet boundary configuration, etc. In the current study, a computational work is performed to investigate the effect of non-equilibrium condensation of moist air on the under-expanded jet, which is discharged from a sonic nozzle. The results obtained are compared with an available experimental data. It is found that non-equilibrium condensation of moist air alleviates the oscillations of the under-expanded jet, and can increase Mach disk diameter, without changing the location.

키워드

참고문헌

  1. Love, E. S., Grigsby, C. E., Lee, L. P. and Woodling, M. J., 1959, 'Experimental and Theoretical Studies of Axisymmetric Free Jet,' NASA TR-R6
  2. Crist, S., Sherman, P. M. and Glass, D. R., 1966, 'Study of the Highly Underexpanded Sonic Jet,' AIAA Journal, Vol. 4, No.1, pp. 68-71 https://doi.org/10.2514/3.3386
  3. Driftmyer, R. T., 1972, 'A Correlation of Freejet Data,' AIAA Journal, Vol. 10, No.8, pp. 1093-1095 https://doi.org/10.2514/3.50306
  4. Addy, A. L., 1981, 'Effects of Axisymmetric Sonic Nozzle Geometry on Mach Disk Characteristics,' AIAA Journal, Vol. 19. No.1, pp. 121-122 https://doi.org/10.2514/3.7751
  5. Chang, I. S. and Chow, W. L., 1974, 'Mach Disk from Underexpanded Axisymmetric Nozzle Flow,' AIAA Journal, Vol. 12, No.8, pp. 1079-1082 https://doi.org/10.2514/3.49415
  6. Deependran, B., Sujith, R. I. and Kurian, J., 1997, 'Studies of Low-Density Freejets and Their Impingement Effects,' AIAA Journal, Vol. 35, No.9, pp. 1536-1542 https://doi.org/10.2514/2.7482
  7. Baskaya, S., Gilchrist, A. and Fraser, S. M., 1997, 'The Radial Spread and Axial Decay of Temperature in Turbulent Condensing Jets,' Int. Comm. Heat Mass Transfer, Vol. 24, No.4, pp. 465-474 https://doi.org/10.1016/S0735-1933(97)00032-8
  8. Baek, S. C., Kwon, S. B. and Kim, H. D. 2003, 'Study of the Moderately Under-Expanded Supersonic Jet of Moist Air,' KSME Annual Spring Conference
  9. Baek, S. C., Kwon, S. B., Kim, H. D., Setoguchi, T., Matsuo, S. and Raghunathan, R. S., 2003, 'Study of Moist Air Flow Through the Ludwieg Tube,' KSME Int. J., Vol. 17, No. 12, pp. 2066-2077