抄録
Disintegration process of aqueous surfactant solutions injected from a fan spray nozzle has been clarified. The thin sheet of the surfactant solution, as represented by soap film, is stable by surface chemical effect and breaks up hard. In this study, this effect on the atomization of the fan liquid sheet has been investigated. Surface chemical stability was evaluated by Ross-Miles method and two types of the test liquids, which had same hydrodynamic physical properties and different surface chemical stability, were prepared. Measured break-up length, which was defined as the distance from the nozzle tip to the end of the liquid sheet, for the two test liquids indicated that the surface chemical stability obviously suppressed the disintegration of the liquid sheet.
