Journal
PHYSICS OF FLUIDS
Volume 26, Issue 11, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4901823
Keywords
-
Categories
Funding
- EPSRC [EP/H018913/1]
- TSB [BD352J]
- EPSRC [EP/H045155/1, EP/H018913/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/H045155/1, EP/H018913/1] Funding Source: researchfish
Ask authors/readers for more resources
The oscillations of free-falling drops with size range from p1 to mu 1 have been used to measure the transient shear viscosity and the dynamic surface tension of shear-thinning fluids on the timescale of 10(-5)-10(-2) s. The method is first validated with Newtonian fluids. For a given surface tension, the lower and upper limits for accurate measurement of the viscosity are determined as a function of drop size. The dynamic properties of two types of shear-thinning fluids with varying viscoelasticity are reported: aqueous suspensions of the antifungal drug griseofulvin and of the organic light-emitting diode material poly(3,4-ethylenedioxythiophene): polystyrenesulphonate. In both cases, the free-falling drop retains the high-shear viscosity. (C) 2014 AIP Publishing LLC.
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