2010
DOI: 10.1299/jfst.5.281
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Effects of Dynamic Surface Tension on Droplet Formation of Surfactant Solution Injected from a Capillary Tube

Abstract: Effects of dynamic surface tension on the droplet formation of surfactant solutions were studied. Test fluids used were aqueous solutions of CTAB at several surfactant mol concentrations (C D) and CTAB/NaSal aqueous solutions at C D =1.0 mM and at three mol concentrations of NaSal. A droplet formed when a surfactant solution was injected into air from a capillary tube was investigated and the relation between the droplet diameter and the injection velocity V was measured. The size of droplet was evaluated by a… Show more

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Cited by 4 publications
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“…Using η e , Equation is rewritten as PPhst=4ηeṘR. $P-{P}_{\mathit{hst}}=4{\eta }_{e}\frac{\dot{R}}{R}.$ Note that the surface tension force is neglected. The surface tension measured for worm‐like micellar fluids is Γ = 30–36 mN/m (Belmonte, 2000; Gladden & Belmonte, 2007; Yamamoto et al., 2010). Then, the Laplace force (2Γ/ R ) for a bubble with R > 2 mm is smaller than 30–36 Pa.…”
Section: Discussionmentioning
confidence: 99%
“…Using η e , Equation is rewritten as PPhst=4ηeṘR. $P-{P}_{\mathit{hst}}=4{\eta }_{e}\frac{\dot{R}}{R}.$ Note that the surface tension force is neglected. The surface tension measured for worm‐like micellar fluids is Γ = 30–36 mN/m (Belmonte, 2000; Gladden & Belmonte, 2007; Yamamoto et al., 2010). Then, the Laplace force (2Γ/ R ) for a bubble with R > 2 mm is smaller than 30–36 Pa.…”
Section: Discussionmentioning
confidence: 99%