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http://dx.doi.org/10.6108/KSPE.2014.18.3.026

Visualizations of Gas-centered Swirl Sprays in Sub to Super Critical Conditions  

Kim, Dohun (School of Mechanical and Aerospace Engineering, Korea Aerospace University)
Lee, Keonwoong (School of Mechanical and Aerospace Engineering, Korea Aerospace University)
Son, Min (School of Mechanical and Aerospace Engineering, Korea Aerospace University)
Koo, Jaye (Department of Mechanical and Aerospace Engineering, Korea Aerospace University)
Publication Information
Journal of the Korean Society of Propulsion Engineers / v.18, no.3, 2014 , pp. 26-33 More about this Journal
Abstract
The gas-centerd swirl injectors are widely used on the main combustor of large liquid propellant rocket engines. Since the gas-liquid propellants, such as kerosene and oxygen-rich gas combination, are mixed and burned in the high pressure condition over the critical pressure point, the cold-flow spray test in the atmospheric condition can not represent the actual spray pattern. To observe the near actual spray patterns of gas-centered swirl injector, the high pressure spray chamber and the control system were constructed. The operating sequence was controlled precisely to obtain clear visualization images.
Keywords
Gas-centered Swirl Injector; Super Critical Spray; Macroscopic Spray Pattern;
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