年間 6 号発行
ISSN 印刷: 2152-5102
ISSN オンライン: 2152-5110
Indexed in
Disintegration of Annular Liquid Sheet with Core Air Flow − Mode Classification
要約
Disintegration mechanism of an annular liquid sheet with a core-gas flow has been studied experimentally. Air and water were used as the test fluids, respectively. Two nozzles with different annulus gaps were prepared to find out the effect of the liquid film thickness on the breakup mode qualitatively. The breakup modes were identified from the high-speed spark photographs. The backward illumination method was adopted for flow visualization. There exist at least three different modes of disintegration, namely, Rayleigh, bubble-breakup, and pure-pulsating modes depending on the air and water flow rates. Tentative maps representing those disintegration modes were provided with the liquid film Reynolds number and the aerodynamic Weber number taken as the dimensionless parameters.
-
Sikka Raghav, Vågsæther Knut, Bjerketvedt Dag, Lundberg Joachim, Experimental Study of Primary Atomization Characteristics of Sonic Air-Assist Atomizers, Applied Sciences, 11, 21, 2021. Crossref
-
Sikka Raghav, Vågsæther Knut, Bjerketvedt Dag, Lundberg Joachim, Visualization study of annular sheet breakup dynamics in sonic twin-fluid atomizers, Journal of Visualization, 25, 4, 2022. Crossref
-
Sikka Raghav, Halstensen Maths, Lundberg Joachim, Spray characterization in air-assist atomizers using flow-induced acoustic vibrations and multivariate analysis, Flow Measurement and Instrumentation, 86, 2022. Crossref