TY - JOUR
T1 - Flow along two dimensions of liquid pulses in foams
T2 - Experiment and theory
AU - Koehler, S. A.
AU - Hilgenfeldt, S.
AU - Stone, H. A.
PY - 2001/5/1
Y1 - 2001/5/1
N2 - Experiments on foam drainage have so far only been performed in essentially one-dimensional flow geometries aligned with the direction of gravity. Here a foam-filled Hele-Shaw cell is used to examine pulsed drainage, which is the flow of a finite liquid volume, both along and perpendicular to the direction of gravity. An exact similarity solution to the generalized foam drainage equation exists, and an asymptotic analysis is presented to elucidate the nonlinear dynamics of the model. Good qualitative and quantitative agreement between theory and experiments on aqueous foams made with SDS surfactant is found when the nodedominated foam drainage model is applied.
AB - Experiments on foam drainage have so far only been performed in essentially one-dimensional flow geometries aligned with the direction of gravity. Here a foam-filled Hele-Shaw cell is used to examine pulsed drainage, which is the flow of a finite liquid volume, both along and perpendicular to the direction of gravity. An exact similarity solution to the generalized foam drainage equation exists, and an asymptotic analysis is presented to elucidate the nonlinear dynamics of the model. Good qualitative and quantitative agreement between theory and experiments on aqueous foams made with SDS surfactant is found when the nodedominated foam drainage model is applied.
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U2 - 10.1209/epl/i2001-00247-9
DO - 10.1209/epl/i2001-00247-9
M3 - Article
AN - SCOPUS:0035324748
VL - 54
SP - 335
EP - 341
JO - Lettere Al Nuovo Cimento
JF - Lettere Al Nuovo Cimento
SN - 0295-5075
IS - 3
ER -