Abstract
The Marangoni-driven film spreading in the fully miscible droplet–reservoir system was experimentally studied. Three stages of film spreading were identified over a relatively long time, with the power-law exponent n (R ∼ tn, R is film radius, t is time) nonmonotonically transitioning from 3/4, to 1/4, and back to 3/4. The variation of the Marangoni stress was found to be responsible for the three-stage power-law relationships, with the tangential stretching effect of the expanding liquid–air interface governing stages I and III and the normal diffusion effect dominating stage II. This work presents a unified interpretation of the inconsistent power-law relationships reported from previous studies on Marangoni-driven film spreading for miscible fluids.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
