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Spatial Distribution Characteristics of Small LRE-injector's Spray-droplet According to the Variation of Fuel-injection Pressure  

Jung, Hun (순천대학교 기계공학과 대학원)
Kim, Jeong-Soo (순천대학교 기계우주항공공학부)
Publication Information
Journal of the Korean Society of Propulsion Engineers / v.12, no.5, 2008 , pp. 1-8 More about this Journal
Abstract
Dual-mode Phase Doppler Anemometry (DPDA) was used to scrutinize the spatial distribution characteristics of spray emanating from a small Liquid-Rocket Engine (LRE) injector. Droplet size and velocity were measured according to the variation of injection pressure along the plane normal to the spray stream and then the spray characteristic parameters such as Arithmetic Mean Diameter (AMD), Sauter Mean Diameter (SMD), number density, span of drop size distribution, and volume flux were deduced for an investigation of spray breakup characteristics. As the injection pressure increases, the number density, span, and volume flux of spray droplets become higher, whereas the AMD gets smaller.
Keywords
Liquid Rocket Engine; Injector; Spray Droplet; Spatial Distribution; Atomization; DPDA;
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Times Cited By KSCI : 2  (Citation Analysis)
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