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

The Korean Society of Mechanical Engineers (대한기계학회)
권호 표지
DOI QR코드

DOI QR Code

Numerical Study for Spray Characteristics of Liquid Jet in Cross Flow with Variation of Injection Angle

분사각 변화에 따른 횡단류에 분사되는 액체제트의 분무특성에 대한 수치적 연구

  • 이관형 (한국항공대학교 대학원 항공우주 및 기계공학과) ;
  • 고정빈 (한국항공대학교 대학원 항공우주 및 기계공학과) ;
  • 구자예 (한국항공대학교 항공우주 및 기계공학부)
  • Published : 2006.02.01
Download PDF
⟨ Previous Next ⟩

Abstract

The spray characteristics of liquid jet in cross flow with variation of injection angle are numerically studied. Numerical analysis was carried out using KIVA code, which was modified to be suitable for simulating liquid jet ejected into cross flow. Wave model and Kelvin-Helmholtz(KH)/Rayleigh-Taylor(RT) hybrid model were used for the purpose of analyzing liquid column, ligament, and the breakup of droplet. Numerical results were compared with experimental data in order to verify the reliability of the physical model. Liquid jet penetration length, volume flux, droplet velocity profile and SMD were obtained. Penetration length increases as flow velocity decreases and injection velocity increases. From the bottom wall, the SMD increases as vertical distance increases. Also the SMD decreases as injection angle increases.

Keywords

References

  1. O'Rourke, P.J. and Amsden, A.A., 1987, 'The TAB Method for Numerical Calculation of Spray Droplet Breakup,' SAE Trans., 872089
  2. Ibrahim, EA, et.al., 1993, 'Modeling of Spray Droplets Deformation and Breakup,' J. of Propulsion and Power, Vol. 9, No.4, pp. 651-654 https://doi.org/10.2514/3.23672
  3. Tanner, F.X., 1997, 'Liquid Jet Atomization and Droplet Breakup Modeling of Non-Evaporation Diesel Fuel Sprays,' SAE Paper 970050
  4. Park, J.H., Hwang, S.S. and Yoon, Y.B., 2000, 'Aerodynamically Progressed Taylor Analogy Breakup(APTAB) Model for Accurate Prediction of Spray Droplet Deformation and Breakup,' ILASS-Korea Vol. 5, No.2, pp. 53-60
  5. Reitz, R.D., 1987, 'Modeling Atomizatio Processes in High-pressure Vaporizing Sprays,' Atomization and Sprays Technology, Vol. 3, pp. 309-337
  6. Beale, J.C. and Reitz, R.D., 1999, 'Modeling Spray Atomization with The Kelvin-Helmholtz I Rayleigh-Taylor Hybrid Model,' Atomization and Sprays, Vol. 9, pp. 623-650 https://doi.org/10.1615/AtomizSpr.v9.i6.40
  7. Madabhushi, R.K., 2003, 'A Model for Numerical Simulation of Breakup of a Liquid Jet in Crossflow,' Atomization and Sprays, Vol. 24, pp. 889-912 https://doi.org/10.1615/AtomizSpr.v13.i4.50
  8. Wu, P.K., Kirkendall, K.A., Fuller, R.P. and Nejad, A.S., 1998, 'Spray Structures of Liquid Jets Atomized in Subsonic Crossflows,' Journal of Propulsion and Power, Vol. 13, No.2, pp. 173-182
  9. Xin, J. Ricart, L. and Reitz, R.D., 1998, 'Computer Modeling of Diesel Spray Atomization and Combustion,' Combustion Sci. Technol., Vol. 137, 1-6, p. 171 https://doi.org/10.1080/00102209808952050
  10. Levich, P.J., 1962, 'Physicochemical Hydrodynamics,' Prentice-Hall, Englewood Cliffs, NJ