Swirl effect on the spray characteristics of a twin-fluid jet |
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Authors: | Byung-Joon Rho Shin-Jae Kang Je-Ha Oh Sam-Goo Lee |
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Affiliation: | (1) Dept. of Mechanical Engrg, Chonbuk National University, Automobile High Technology Research Institute, Chonju, S. Korea;(2) Gracuate School, Department of Precision Mechanical Engineering, Chonbuk National University, Chonju, S. Korea |
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Abstract: | In the liquid fuel combustion chamber, employed fuel must be atomized before being injected into the combustion zone. Therefore,
the complete fuel atomization is the most important condition for the combustion efficiency. The atomization quality strongly
affects the combustion performance, exhaust pollutant emissions, and flame stability. Therefore, the whole process of spray
atomization is of fundamental significance. During past decades many experimental and theoretical studies in this field have
been carried out and some improved results have been obtained. Two-phase atomizers, having a variety of advantages such as
spray uniformity, appreciable atomization, and smaller SMD with an increase of ambient gas, are considered to be applied in
various industrial processes. The purpose of present study is to investigate the mean velocity, turbulence shear stress, turbulence
intensity, mean drop size distribution, and droplet data rate in a two-phase swirling jet using PDPA systems. |
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Keywords: | Twin-Fluid Swirler Sauter Mean Diameter (SMD) Phase Doppler Particle Analyzer (PDPA) Air/Liquid Mass Flow ratio (ALR) Reynolds Stress Hollow-Cone |
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