Drop Formation in Non-Newtonian Fluids
Language
en
Article de revue
This item was published in
Physical Review Letters. 2013, vol. 110, n° 3, p. 34501
American Physical Society
English Abstract
We study the pinch-off dynamics of droplets of yield stress and shear thinning fluids. To separate the two non-Newtonian effects, we use a yield stress material for which the yield stress can be tuned without changing the ...Read more >
We study the pinch-off dynamics of droplets of yield stress and shear thinning fluids. To separate the two non-Newtonian effects, we use a yield stress material for which the yield stress can be tuned without changing the shear thinning behavior, and a shear thinning system (without a yield stress) for which the shear thinning can be controlled over a large range, without introducing too much elasticity into the system. We find that the pinch-off remains very similar to that of constant viscosity Newtonian liquids, and consequently thinning in shear flow does not imply a thinning in elongational flow.Read less <
English Keywords
Non-Newtonian fluid flows
Drops and bubbles
Extensional flow and combined shear and extension
Origin
Hal imported