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Visualization of Breakup and Atomization Processes in Non-evaporating Diesel Sprays  

원영호 (울산대학교 기계자동차공학부)
김우태 (울산대학교 대학원)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.12, no.1, 2004 , pp. 25-31 More about this Journal
Abstract
Two-dimensional laser visualization methods have been used in the study of breakup and atomization processes of non-evaporating diesel sprays. A single-hole spray injected into a quiescent atmospheric environment was visualized by the LIF(Laser Induced Fluorescence) and scattering technique. The LIF technique could be implemented to take the images which are magnified enough to show the shape of liquid ligaments and small droplets. The spontaneous scattering and fluorescent images of sprays were also taken to investigate the atomization of droplets. In the tip and periphery of a spray. the scattering light is bright and the ratio of fluorescent/scattering intensity is lower. This characteristics indicate the very high number density of small droplets which are well atomized.
Keywords
Diesel spray; Droplet breakup; Droplet atomization; Spray visualization; Fluorescence of droplet;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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