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http://dx.doi.org/10.5139/JKSAS.2008.36.3.258

Performance of Pressure Swirl Injector using Screw Type Swirler for Combustor in a Supersonic Engine (Part I. Performance of Control Group Injector)  

Hwang, Yong-Seok (국방과학연구소)
Lee, Jang-Woo (국방과학연구소)
Lee, Sang-Youn (국방과학연구소)
Jeong, Hae-Seung (국방과학연구소)
Yoon, Hyun-Gull (국방과학연구소)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.36, no.3, 2008 , pp. 258-263 More about this Journal
Abstract
Performance of injector equiped with screw type swirler which is suitable for supersonic cruise engine combustor was investigated using theoretical, numerical, and experimental methods. Based on discharge coefficient and spray angle which represent the performance of injectors, the geometrical parameters which affect these performance parameters were defined, control group injectors were designed, and variation of performance parameters according to the geometrical parameters were examined. Within the defined range, measured value of performance of injectors was smaller than result of theoretical prediction, and prediction result from numerical simulation using VOF method agreed with the result of experiments very well. The viscous barrier was not observed, and minimum discharge coefficient and maximum spray angle, 0.05 and 104 respectively, was obtained for this type of injector.
Keywords
Supersonic cruise engine; Injector; Discharge Coefficient; Spray Angle; VOF(Volume Of Fluid);
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