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http://dx.doi.org/10.6108/KSPE.2015.19.4.061

Comparison between GOx/Kerosene and GN2O/Ethanol Reactive Spray in a Subscale Liquid Rocket Engine  

Choi, Songyi (Department of Aerospace and Mechanical Engineering, Korea Aerospace University)
Shin, Bongchul (Department of Aerospace and Mechanical Engineering, Korea Aerospace University)
Lee, Keonwoong (Department of Aerospace and Mechanical Engineering, Korea Aerospace University)
Kim, Dohun (Department of Aerospace and Mechanical Engineering, Korea Aerospace University)
Koo, Jaye (School of Aerospace and Mechanical Engineering, Korea Aerospace University)
Park, Dong-Kun (Satellite.EW System Group, ISR.PGM R&D Center)
Publication Information
Journal of the Korean Society of Propulsion Engineers / v.19, no.4, 2015 , pp. 61-68 More about this Journal
Abstract
Reactive sprays of two propellant combinations(GOx/kerosene and $GN_2O$/ethanol) were observed and compared with each other as a basic research of visualizing supercritical combustion. A shadowgraph imaging method was used to visualize the reactive sprays, and shadowgraph images were converted to density gradient magnitude images to analyse the structure of reactive sprays. The gas-liquid interface of GOx/kerosene spray showed rougher boundary and steeper density gradient near the injector face than the $N_2O$/ethanol at similar combustion chamber pressure. Spray core length was calculated from averaged density gradient magnitude images and it was revealed that spray core length of GOx/kerosene was shorter than that of $GN_2O$/ethanol, although momentum flux ratio of GOx/kerosene propellant combination was lower.
Keywords
Combustion Flow-field; Kerosene; GOx; Shadowgraph; Spray Core Length;
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Times Cited By KSCI : 1  (Citation Analysis)
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1 Mayer, W.O.H., "Coaxial Atomization of a Round Liquid Jet in a High Speed Gas Stream: a Phenomenological Study," Experiments in Fluids, Vol. 16, No. 6, pp. 401-140, 1994.   DOI
2 Lasheras, J.C., Villermaux, E. and Hopfinger, E.J., "Break-up and Atomization of a Round Water Jet by a High-speed Annular Air Jet," Journal of Fluid Mechanics, Vol. 357, pp. 351-379, 1998.   DOI   ScienceOn
3 Varga, C.M., Lasheras, J.C. and Hopfinger, E.J., "Initial Breakup of a Small-diameter Liquid Jet by a High-speed Gas Stream," Journal of Fluid Mechanics, Vol. 497, pp. 405-434, 2003.   DOI   ScienceOn
4 Yang, B., Cuoco, F. and Oschwald, M., "Atomization and Flames in LOX/H2- and LOX/CH4-Spray Combustion," Journal of Propulsion and Power, Vol. 23, No. 4, pp. 763-771, 2007.   DOI   ScienceOn
5 Lux, J. and Haidn, O., "Flame Stabilization in High-Pressure Liquid Oxygen/Methane Rocket Engine Combustion," Journal of Propulsion and Power, Vol. 25, No. 1, pp. 15-23, 2009.   DOI   ScienceOn
6 Preclik, D., Hagenmann, G., Knab, O., Ma ding, C., Haeseler, D., Haidn, O., Woschnak, A. and DeRosa, M., "LOX/Hydrocarbon Preparatory Thrust Chamber Technology Activities in Germany," 41st AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, Tucson, A.Z., U.S.A., AIAA 2005-4555, Jul. 2005.
7 Karabeyoglu, A., "Mixtures of Nitrous Oxide and Oxygen(Nytrox) as Oxidizers for Rocket Propulsion Applications," 45th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, Denver, C.O., U.S.A., AIAA 2009-4966, Aug. 2009.
8 Sutton, G.P., Rocket Propulsion Elements, 7th ed., John Wiley & Sons Inc., New York, N.Y., U.S.A., 2001.
9 Pempie, P., Frohlich, T. and Vernin, H., "LOX/methane and LOX/kerosene High Thrust Engine Trade-off," 37th AIAA/ASME/SAE/ASEE Joint Propulsion, Salt Lake City, U.T., U.S.A., AIAA 2001-3542, Jul. 2001.
10 Santoro, R.J. and Merkle, C.L., "Main Chamber and Preburner Injector Technology," NASA Technical Report NCC 8-46, 1999.
11 Kim, D., Lee, K. and Koo, J., "Effects of Wall-injection Length on Spray Core and Combustion Performance in a Coaxial Porous Injector," 50th AIAA/ASME/SAE/ASEE Joint Propulsion Conference, Cleveland, O.H., U.S.A., AIAA 2014-3285, Jul. 2014.
12 Wang, T.S., "Thermophysics Characterization of Kerosene Combustion," 34th AIAA Thermodynamics Conference, Denver, C.O., U.S.A., AIAA 2000-2511, Jun. 2000.
13 Byun, D. and Baek, S.W., "Numerical Investigation of Combustion with Non-gray Thermal Radiation and Soot Formation Effect in a Liquid Rocket Engine," International Journal of Heat and Mass Transfer, Vol. 50, No. 3, pp. 412-422, 2007.   DOI   ScienceOn
14 Kim, D., Park, J., You, M., Lee, K. and Koo, J., "Visualization of Transient Ignition Flow-field in a 50 N Scale $N_2O/C_2H_5OH$ Thruster," Journal of the Korean Society of Propulsion Engineers, Vol. 18, No. 6, pp. 11-18, 2013.   DOI