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A Study of Spray Characteristics of the Rotating Fuel Nozzle with Orifice Diameters  

Lee, Mae-Hoon (전북대학교 항공우주공학과)
Jang, Seong-Ho (전북대학교 항공우주공학과)
Lee, Dong-Hun (삼성테크윈 파워시스템연구소)
Choi, Seong-Man (전북대학교 항공우주공학과)
Publication Information
Journal of the Korean Society of Propulsion Engineers / v.14, no.5, 2010 , pp. 51-56 More about this Journal
Abstract
An experimental study was performed to understand spray characteristics of the V type rotating fuel nozzle with orifice diameters by using high speed rotational system. The experimental apparatus consist of a high speed rotational system, fuel injection system and acrylic case. The droplet size and velocity were measured by PDPA(Phase Doppler Particle Analyzer) and spray was visualized by using Nd-Yag laser-based flash photography. From the test results, droplet size is reduced with increasing orifice diameter up to the critical value. When increasing orifice diameter over than this critical value, droplet size is not decreased with increasing the orifice diameter. This is due to the irregular distribution of the liquid sheet around the inner surface of injection orifice.
Keywords
Rotating Fuel Nozzle; Orifice; SMD; Spray Characteristics;
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