Browse > Article
http://dx.doi.org/10.15435/JILASSKR.2014.19.4.167

Spray Characteristics of Gas-Centered Swirl Coaxial Injectors according to Injection Conditions  

Park, Gujeong (서울대학교 기계항공공학부)
Lee, Jungho (서울대학교 기계항공공학부)
Lee, Ingyu (서울대학교 기계항공공학부)
Yoon, Youngbin (서울대학교 기계항공공학부)
Publication Information
Journal of ILASS-Korea / v.19, no.4, 2014 , pp. 167-173 More about this Journal
Abstract
The spray characteristics of Gas-Centered Swirl Coaxial Injector was investigated that there were different characteristics with or without gas flow. As gas flow was accelerated, the momentum of gas was transferred to the momentum of liquid in the low liquid Reynolds number. Therefore, the axial velocity of liquid was increased and the measured value was smaller than without gas flow. However, in the high momentum flux ratio, the momentum transfer hardly occurred and the results had constant values. As the recess length was increased, the mixing area of gas and liquid also was increased, the results were decreased.
Keywords
Gas-Centered Swirl Coaxial Injector; Spray angle; Film thickness; Breakup length; Momentum flux ratio;
Citations & Related Records
연도 인용수 순위
  • Reference
1 J. Im, S. Cho and Y. Yoon, "Comparative Study of Spray Characteristics of Gas-Centered and Liquid-Centered Swirl Coaxial Injectors", Journal of Propulsion and Power, Vol. 26, No. 6, November-December 2010.
2 M. Hong, J. Matas, S. Marty, A. Cartellier, S. Lee, and A. Delon, "A study of the Internal Two-Phase Flow in Gas-Centered Swirl Coaxial Injectors", 8th International Conference on Multiphase Flow, 26-31 May 2013, Jeju, Korea.
3 S. Kim, T. Khil, D. Kim and Y. Yoon, "Effect of geometric parameters on the liquid film thickness and air core formation in a swirl injector", Measurement Scinece and Technology, Vol. 20, No. 1, 2009.
4 Q. Fu, L. Yang and Y. Qu, "Measurement of annular liquid film thickness in an open-end swirl injector", Aerospace Science and Technology 15, 2011, pp. 117-124.   DOI   ScienceOn
5 Q. Fu, L. Yang, W. Zhang and K. Cui, "Spray characteristics of an open-end swirl injector", Atomization and Sprays, Vol. 22, No. 5, 2012, pp. 431-445.   DOI
6 V. Kulkarni, D. Sivakumar, C. Oommen and T. J. Tharakan, "Liquid sheet breakup in gas-centered swirl coaxial atomizers", Journal of Fluids Engineering, JANUARY 2010, Vol. 132, 011303.   DOI
7 S. Danczyk, K. A. Clark, M. D. A. Lightfoot, D. Talley and H. S. Lyu, "Film Behavior in Gas-Centered Swirl-Coaxial Injectors", 55th JANNAF Propulsion/4th LPS/3rd SPS/6th MSS Joint Meeting, 8-12 Dec 2008, Orlando, FL.
8 S. A. Schumaker, S. A. Danczyk and M. D.A. Lightfoot, "Effect of Swirl on Gas-Centered Swirl-Coaxial Injectors", 47th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit 31 July-03 August 2011, San Diego, California.