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http://dx.doi.org/10.15435/JILASSKR.2018.23.2.49

Numerical Study on Swirl Coaxial Injectors with Different Recess Lengths  

Lee, Bom (충북대학교 기계공학부)
Yoon, Wonjae (충북대학교 기계공학부)
Yoon, Youngbin (서울대학교 기계항공공학)
Ahn, Kyubok (충북대학교 기계공학부)
Publication Information
Journal of ILASS-Korea / v.23, no.2, 2018 , pp. 49-57 More about this Journal
Abstract
Numerical study under single-injection on bi-swirl coaxial injectors with different recess lengths was performed using ANSYS Fluent. The bi-swirl coaxial injectors which consisted of inner closed-type and outer open-type swirl injectors, had three different recess lengths. By changing mass flow rates, numerical simulation was repeated using the Reynolds stress BSL turbulent model. The numerical results such as discharge coefficient and spray angle were compared with previous experimental data and were found to be approximately matched well with them, irrespective of recess length. Quantitative data which was hard to be measured from experiments, were successfully obtained through the present numerical study.
Keywords
Discharge coefficient; Recess length; Spray angle; Swirl coaxial injector;
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Times Cited By KSCI : 2  (Citation Analysis)
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1 J. Cui, H. Lai, J. Li and Y. Ma, "Visualization of internal flow and the effect of orifice geometry on the characteristics of spray and flow field in pressure-swirl atomizers", Applied Thermal Engineering, Vol. 127, 2017, pp. 812-822.   DOI
2 S. Yao, J. Zhang and T. Fang, "Effect of viscosities on structure and instability of sprays from a swirl atomizer", Experimental Thermal and Fluid Science, Vol. 39, 2012, pp. 158-166.   DOI
3 S. Kim, D. Kim, T. Khil and Y. Yoon, "Effect of geometry on the liquid film thickness and formation of air core in a swirl injector", 43rd AIAA/ASME/SAE/ASEE, Joint Propulsion Conference & Exhibit, 2007.
4 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 Science and Technology, Vol. 20, 2009, 015403.   DOI
5 S. Oh, G. Park, S. Kim, H. Lee, Y. Yoon and J. Y. Choi, "A study on dynamic characteristics of gas-centered swirl coaxial injector varying tangential inlet diameter with liquid pulsation", Journal of ILASS-Korea, Vol. 22, No. 2, 2017, pp. 62-68.   DOI
6 B. Sumer, N. Erkan, O. Uzol and I. H. Tuncer, "Experimental and numerical investigation of a pressure swirl atomizer", 12th Triennial International Conference on Liquid Atomization and Conference on Liquid Atomization and Spray System, 2012.
7 J. Zhao and L. Yang, "Simulation and experimental study on the atomization character of the pressure-swirl nozzle", Open Journal of Fluid Dynamics, Vol. 2, 2012, pp. 271-277.   DOI
8 J. Y. Kim, Y. Yoon and J. Y. Choi, "Numerical analysis of internal flow of closed-type swirl injector using VOF method", Korean Society of Propulsion Engineering Fall Conference Paper, 2016, pp. 419-421.
9 W. Yoon, "A study on the spray characteristics of biswirl injectors", Master Thesis, Chungbuk National University, 2017.
10 W. Yoon, B. Lee and K. Ahn, "A study on the spray characteristics of swirl injectors using ANSYS Fluent", Journal of ILASS-Korea, Vol. 22, No. 4, 2017, pp. 159-168.   DOI
11 ANSYS Fluent Theory Guide, v17.2, Canonsburg, PA, 2016.
12 ANSYS Fluent User's Guide, v17.2, Canonsburg, PA, 2016.
13 G. P. Sutton, Rocket Propulsion Elements, 6th ed., John Wiley & Sons Inc., New York, 1992.
14 T. Marchione, C. Allouis, A. Amoresano and F. Beretta, "Experimental investigation of a pressure swirl atomizer spray", Journal of Propulsion and Power, Vol. 23, No. 5, 2007, pp. 1096-1101.   DOI
15 D. K. Huzel and D. H. Huang, Modern engineering for design of liquid-propellant rocket engines, 2nd ed., AIAA, Washington D.C., 1992.
16 A. H. Lefebvre, Atomization and Sprays, Hemisphere Publishing Corp., New York, 1989.
17 V. G. Bazarov, Liquid Injector Dynamics, Moscow, Mashinostrenie, 1979.
18 Y. Chung, H. Kim, S. Jeong and Y. Yoon, "Dynamic characteristics of open-type swirl injector with varying geometry", Journal of Propulsion and Power, Vol. 32, No. 3, 2016, pp. 583-591.   DOI
19 Q. F. Fu, L. J. Yang and X. D. Wang, "Theoretical and experimental study of the Dynamics of a liquid swirl injector", Journal of Propulsion and Power, Vol. 26, No. 1, 2010, pp. 94-101.   DOI
20 Q. F. Fu, L. J. Yang and Y. Y. Qu, "Measurement of annular liquid film thickness in an open-end swirl injector", Aerospace Science and Technology, Vol. 15, No. 2, 2011, pp. 117-124.   DOI
21 C. Chen, Y. Yang, S. H. Yang and H. L. Gao, "The spray characteristics of an open-end swirl injector at ambient pressure", Aerospace Science and Technology, Vol. 67, 2017, pp. 78-87.   DOI
22 M. Rashad, H. Yong and Z. Zekun, "Effect of geometric parameters on spray characteristics of pressure swirl atomizers", International Journal of Hydrogen Energy, Vol. 41, 2016, pp. 15790-15799.   DOI
23 T. Inamura, H. Tamura and H. Sakamoto, "Characteristics of liquid film and spray injected from swirl coaxial injector", Journal of Propulsion and Power, Vol. 19, No. 4, 2003, pp. 632-639.   DOI
24 Q. F. Fu and L. J. Yang, "Visualization studies of the spray from swirl injectors under elevated ambient pressure", Aerospace Science and Technology, Vol. 47, 2015, pp. 154-163.   DOI