Journal
LANGMUIR
Volume 31, Issue 42, Pages 11470-11476Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.langmuir.5b03292
Keywords
-
Funding
- Xerox Foundation
- Canada Research Chair Program
- Alberta Innovates Technology Futures
Ask authors/readers for more resources
In this work, a systematic experimental study was performed to understand the fast liquid transfer process between two surfaces. According to the value of the Reynolds number (Re), the fast transfer is divided into two different scenarios, one with negligible inertia effects (Re << 1) and the other with significant inertia effects (Re > 1). For Re << 1, the influences of the capillary number (Ca) and the dimensionless minimum separation (H-min* = H-min/V-1/3, where H-min is the minimum separation between two surfaces and Vis the volume of liquid) on the transfer ratio (alpha, the volume of liquid transferred to the acceptor surface over the total liquid volume) are discussed. On the basis of the roles of each physical parameter, an empirical equation is presented to predict the transfer ratio, alpha = f(Ca). This equation involves two coefficients which are affected only by the surface contact angles and Hmin* but not by the liquid viscosity or surface tension. When Re > 1, it is shown for the first time that the transfer ratio does not converge to 0.5 with the increase in the stretching speed.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available