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http://dx.doi.org/10.6108/KSPE.2017.21.5.088

Study on Spray Visualization and Atomization Characteristics of Air-assist Type Injector for Scramjet Engine  

Lee, Jinhee (School of Aerospace System Engineering, University of Science and Technology)
Lee, Sanghoon (Engine System Research Team, Korea Aerospace Research Institute)
Lee, Kyungjae (Engine System Research Team, Korea Aerospace Research Institute)
Kim, Jaiho (Engine System Research Team, Korea Aerospace Research Institute)
Yang, Sooseok (Engine System Research Team, Korea Aerospace Research Institute)
Publication Information
Journal of the Korean Society of Propulsion Engineers / v.21, no.5, 2017 , pp. 88-96 More about this Journal
Abstract
As a part of the development procedures of scramjet engine with a regenerative cooling system, this experiment was performed using air-assist type injectors for scramjet engine. Two types of injectors were used in this experiment with the 90 and 60 degrees of the injection angle to the main flow. Mie-scattering was used for spray visualization and PDPA was used for the measurement of the atomization characteristics. It was found that increasing the pressure of supplied gas and the distance from nozzle tip led to the enhancement atomization characteristics and the injector with 60 degrees injection angle has better atomization characteristics than 90 degrees injector.
Keywords
Scramjet; Air-assist Type Injector; Mie-scattering; PDPA(Phase Doppler Particle Analyzer);
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1 Kim, Y.M., Yang, I.Y., Lee, K.J. and Lee, Y.J., "Study for combustion characteristics of a Scramjet engine used barbotage injector," 39th Korean Society of Propulsion Engineers Fall Conference, Yeosu, Korea, pp. 186-189, Nov. 2012.
2 Otsu, N., "A threshold selection method from gray-level histograms," IEEE transactions on systems, man, and cybernetics, Vol. 9, No. 1, pp. 62-66, 1979.   DOI
3 Yang, I.Y., Lee, Y.J., Lee, K.J., Choi, S.M. and Park, C., "Combustion Experiments for a liquid hydrocarbon fueled Mach 5 Scramjet engine model," Journal of Propulsion and Power, Vol. 30, No. 5, pp. 1433-1438, 2014.   DOI
4 Ben-Yakar, A., and Hanson, R.K., "Cavity flame-holders for ignition and flame stabilization in scramjets: an overview," Journal of Propulsion and Power, Vol. 17, No. 4, pp. 869-877, 2001.   DOI
5 Liu, H., Science and Engineering of Droplets: Fundamentals and Applications, William Andrew, New York, N.Y., U.S.A., 1999.
6 Pandey, K.M. and Sivasakthivel, T., "Recent advances in scramjet fuel injection - a review," International Journal of Chemical Engineering and Application, Vol. 1, No. 4, pp. 294-301, 2010.
7 Mie, G., "Beitrage zur Optik Median, speziell kolloidater Metallosungen," Annalen der physik, Vol. 330, No. 3, pp. 377-445, 1908.   DOI
8 Hahn, D.W., "Light scattering theory," Department of Mechanical and Aerospace Engineering, Florida, F.L., U.S.A., Jul. 2009.
9 Houser, M.J., "Phase/Doppler spray anlayzer for simultaneous measurements of drop size and velocity distribution," Optical Engineering, Vol. 23, No. 5, pp. 583-590, 1984.
10 Bachalo, W.D., Rudoff, R.C. and Brena de La Rosa, A., "Mass flux measurements of a high number density spray system using the phase Doppler particle analyzer," 26th AIAA Aeropsace Sciences Metting, Reno, N.V., U.S.A., AIAA-88-0236, Jan. 1988.