Back to Search
Start Over
Liquid bridge length scale based nondimensional groups for mapping transitions between regimes in capillary break-up experiments
- Source :
- Physical Review Fluids, 5(5):051901. American Physical Society
- Publication Year :
- 2020
- Publisher :
- American Physical Society, 2020.
-
Abstract
- Criteria to identify transitions between dynamic self-similar linear thinning regimes of liquid bridges are of utmost importance in order to accurately interpret results in capillary break-up rheometry. Currently available criteria encompass many experimental difficulties or rely on numerical approaches. Here, we introduce a different set of nondimensional groups, , Oh_L = η/γρL and a = R/L, based on the experimentally relevant axial length scale of a liquid bridge L, for viscous-dominated fluids undergoing capillary break-up in air. This framework is further extended to encompass the effect of outer viscous fluids. As a result, we present a two-dimensional operating map in which the boundaries are set by fluid properties and a single geometrical parameter, related to the experimental configuration. This approach establishes guidelines to correctly interpret experimental data and identify transitions in capillary break-up experiments of liquid bridges surrounded by fluids of different viscosities. ispartof: Physical Review Fluids vol:5 issue:5 status: Published online
Details
- Language :
- English
- ISSN :
- 2469990X
- Volume :
- 5
- Issue :
- 5
- Database :
- OpenAIRE
- Journal :
- Physical Review Fluids
- Accession number :
- edsair.doi.dedup.....f7533fdd10ab1fd0baa2827b1dcbeb5f