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A study on the characterization of open-type swirl injector

오픈형 압력 스월 분무의 특성 측정에 관한 연구

  • Song, Da Hun (Department of Mechanical Convergence Engineering, Kyungnam University) ;
  • Lee, Hyunchang (School of Mechanical Engineering, Kyungnam University)
  • Received : 2021.01.12
  • Accepted : 2021.03.31
  • Published : 2021.04.30

Abstract

In this experimental study, measurement techniques such as backlight imaging, optical patternator, and laser sheet drop sizing were applied to characterize open-type swirl injector used in Russian liquid rocket engine, RD 107. The typical development of swirl spray was observed in backlight images. The breakup length was measured by using the ratio between Mie scattering and fluorescence signal. Relative Sauter Mean Diameter was measured by using laser sheet drop sizing and the possible source of errors were discussed.

Keywords

Acknowledgement

이 연구결과물은 2018학년도 경남대학교 신진교수연구비 지원에 의한 것임.

References

  1. W. J. Yoon. and K. B. Ahn., 2015, "Investigation on Spray Angle Measurement Methods in a Swirl Injector," Journal of Industrial Science and Technology Institute., Vol. 29, No. 2, pp. 1~5.
  2. G. Park et al., 2014, "Spray Characteristics of Gas-Centered Swirl Coaxial Injectors according to Injection Conditions," Journal of the Korean Society of Propulsion Engineers., Vol. 19, No. 4, pp. 167-173.
  3. W. Lee et al., 2019, "Spray Characteristics of Effervescent Swirl Injectors for Variable Thrust," Journal of the Korean Society of Propulsion Engineers., Vol. 23, No. 2, pp. 1-12.
  4. G. Charalampous et al., "Measurement of continuous liquid jet length in atomizers with optical connectivity, electrical conductivity and high-speed photography techniques." Proc. 23rd Annual Conference on Liquid Atomization and Spray Systems, ILASS-Europe. 2010.
  5. S. Kim et al.,2016, "Liquid Film Thickness Measurement for a Swirl Injector" Journal of the Korea Society of Propulsion Engineers, pp. 70-77
  6. K. Lee et al. "The Spray Characterization Using Planar Imaging Technique." Transactions of the Korean Society of Mechanical Engineers B 24.1 (2000): 93-101. https://doi.org/10.22634/KSME-B.2000.24.1.93
  7. Strakey, Peter A., et al. "Phase-Doppler interferometry with probe-to-droplet size ratios less than unity. II. Application of the technique." Applied Optics 39.22 (2000): 3887-3893. https://doi.org/10.1364/AO.39.003887
  8. Domann, Roland, and Yannis Hardalupas. "Quantitative measurement of planar droplet Sauter mean diameter in sprays using planar droplet sizing." Particle & Particle Systems Characterization: Measurement and Description of Particle Properties and Behavior in Powders and Other Disperse Systems 20.3 (2003): 209-218.
  9. Y. Nath Mishra et al. "Reliable LIF/Mie droplet sizing in sprays using structured laser illumination planar imaging", Opt. Express, 22, 4480-4492, (2014) https://doi.org/10.1364/OE.22.004480
  10. H. S. Koh et al., 2001, "An Experimental Study on Signal Extinction Effect of Planar Imaging Technique," Journal of the Korea Society for Aeronautical & Space Sciences., Vol. 29(7), pp. 71~77.
  11. E. Lemmon et al., "Thermophysical Properties of Fluid Systems" in NIST Chemistry WebBook, NIST Standard Reference Database Number 69, Eds. P.J. Linstrom and W.G. Mallard, National Institute of Standards and Technology, Gaithersburg MD, 20899, https://doi.org/10.18434/T4D303, (retrieved January 5, 2021)
  12. M. Hong et al., "Discharge coefficient of pressure-swirl atomizers with low nozzle opening coefficients." Journal of Propulsion and Power 28.1, 213-218, 2012. https://doi.org/10.2514/1.B34168
  13. Lefebvre, Arthur H., and Vincent G. McDonell. Atomization and sprays. CRC press, 2017.
  14. Berrocal, E. (2016). Structured laser illumination planar imaging: new horizons for the study of spray dynamics, thermometry and droplet sizing. In 18th International Symposium on the Application of Laser and Imaging Techniques to Fluid Mechanics. Lisbon (pp. 1-16).