年間 12 号発行
ISSN 印刷: 1044-5110
ISSN オンライン: 1936-2684
Indexed in
CONSIDERATIONS ON THE GAS-PHASE VELOCITY FIELD IN A NONEVAPORATING DIESEL SPRAY
要約
In the present work the structure of the gas velocity field of a nonevaporating diesel spray and its time evolution have been studied. A two-component PDA is used to measure ensemble-averaged spatial distributions of droplet size, axial, and radial velocities. Measurements are taken during very short temporal windows along many injection cycles. Spray droplets with sizes under 5 pm are used as tracers of the gas velocity field. A vortex is identified in the gas-phase velocity field at the periphery of the spray. A simple methodology based on a Rankine vortex model enables one to characterize the structure and its time evolution.
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Kastengren Alan L., Powell Christopher F., Cheong Seong-Kyun, Wang Yujie, Im Kyoung-Su, Liu Xin, Wang Jin, Riedel Thomas, Determination of Diesel Spray Axial Velocity Using X-Ray Radiography, SAE Technical Paper Series, 1, 2007. Crossref
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Sahu Srikrishna, Manish M., Hardalupas Yannis, Two-Phase Characterization for Turbulent Dispersion of Sprays: A Review of Optical Techniques, in Droplets and Sprays, 2018. Crossref
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Urbán András, Zaremba Matouš, Malý Milan, Józsa Viktor, Jedelský Jan, Droplet dynamics and size characterization of high-velocity airblast atomization, International Journal of Multiphase Flow, 95, 2017. Crossref
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Jedelsky Jan, Maly Milan, Pinto del Corral Noé, Wigley Graham, Janackova Lada, Jicha Miroslav, Air–liquid interactions in a pressure-swirl spray, International Journal of Heat and Mass Transfer, 121, 2018. Crossref