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http://dx.doi.org/10.5139/JKSAS.2015.43.10.868

Study on Spray characteristics of Dual-Manifold Injector with Various Tangential Entries  

Lee, Ingyu (School of Mechanical and Aerospace Engineering, Seoul National University)
Jeong, Seokgyu (School of Mechanical and Aerospace Engineering, Seoul National University)
Yoon, Jungsoo (School of Mechanical and Aerospace Engineering, Seoul National University)
Park, Gujeong (School of Mechanical and Aerospace Engineering, Seoul National University)
Yoon, Youngbin (School of Mechanical and Aerospace Engineering, Seoul National University)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.43, no.10, 2015 , pp. 868-874 More about this Journal
Abstract
Thrust variation is an essential parameter in a space mission such as landing on an atmosphereless planet or docking a spacecraft. In order to achieve the thrust variation control, using throttleable injector is a representative and general method. A dual-manifold injector, one of throttleable injectors, was used to control mass flow rate. Five kinds of injectors were designed and investigated in order to compare the spray characteristics of the dual-manifold injector with various tangential entries. Spray angles and patterns were measured to determine external flow characteristics and film thicknesses were measured in order to investigate the internal flow patterns.
Keywords
Throttling; Dual-manifold injector; Internal flow; External flow;
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