TY - JOUR
T1 - Drop formation in non-newtonian fluids
AU - Aytouna, Mounir
AU - Paredes, Jose
AU - Shahidzadeh-Bonn, Noushine
AU - Moulinet, Sébastien
AU - Wagner, Christian
AU - Amarouchene, Yacine
AU - Eggers, Jens
AU - Bonn, Daniel
PY - 2013/1/14
Y1 - 2013/1/14
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=84872296007&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.110.034501
DO - 10.1103/PhysRevLett.110.034501
M3 - Article (Academic Journal)
C2 - 23373927
AN - SCOPUS:84872296007
VL - 110
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 3
M1 - 034501
ER -