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Characteristics of the Droplet Behavior in the Overlap Region of Twin Spray and in Single Spray
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 Title & Authors
Characteristics of the Droplet Behavior in the Overlap Region of Twin Spray and in Single Spray
Jung, Ji-Won; Cha, Keun-Jong; Kim, Duck-Jool;
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 Abstract
The objectives of this study was to investigate the spray characteristics of single spray and twin spray in the overlap region such as mean axial velocity, mean radial velocity, mean droplet size and probability density function of droplet size. A phase doppler anemometer was used as the measurement system for droplet size and velocity. In case of single spray, injection pressure was varied from 0.2MPa to 0.7MPa. Mean axial velocity, mean radial velocity and droplet size were decreased as the distance below nozzle tip was increased. In case of twin spray, the spray characteristics were measured by varying the distance between two nozzles from 127mm to 155mm. In the overlap region, the boundary of the overlap region was determined by obtaining the distribution of mean axial and radial velocity. Droplet size was increased as the distance from nozzle tip was increased. It was found that the distribution of droplet size for twin spray in the overlap region was different to single spray.
 Keywords
Liquid Atomization;Pressure-Swirl Nozzle;Phase Doppler Anemometer;Twin Spray;
 Language
Korean
 Cited by
1.
액체의 물성치와 노즐의 형상 변화에 따른 압력스월 노즐의 분무 특성,최윤철;정지원;김덕줄;

대한기계학회논문집B, 2001. vol.25. 12, pp.1813-1820 crossref(new window)
2.
이중분무에서 분무특성과 에칭특성의 상호상관,정지원;김영진;김덕줄;

대한기계학회논문집B, 2004. vol.28. 4, pp.449-455 crossref(new window)
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