dorsal/arxiv
View SchemaInteraction of two deformable viscous drops under external temperature gradient
| Authors | V. Berejnov, O. M. Lavrenteva, A. Nir |
|---|---|
| Categories | |
| ArXiv ID | physics/0102072 |
| URL | https://arxiv.org/abs/physics/0102072 |
Abstract
The axisymmetric deformation and motion of interacting droplets in an imposed temperature gradient is considered using boundary-integral techniques for slow viscous motion. Results showing temporal drop motion, deformations and separation are presented for equal-viscosity fluids. The focus is on cases when the drops are of equal radii or when the smaller drop trails behind the larger drop. For equal-size drops, our analysis shows that the motion of a leading drop is retarded while the motion of the trailing one is enchanced compared to the undeformable case. The distance between the centers of equal-sized deformable drops decreases with time. When a small drop follows a large one, two patterns of behavior may exist. For moderate or large initial separation the drops separate. However, if the initial separation is small there is a transient period in which the separation distance initially decreases and only afterwards the drops separate. This behavior stems from the multiple time scales that exist in the system.
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"abstract": "The axisymmetric deformation and motion of interacting droplets in an imposed\ntemperature gradient is considered using boundary-integral techniques for slow\nviscous motion. Results showing temporal drop motion, deformations and\nseparation are presented for equal-viscosity fluids. The focus is on cases when\nthe drops are of equal radii or when the smaller drop trails behind the larger\ndrop. For equal-size drops, our analysis shows that the motion of a leading\ndrop is retarded while the motion of the trailing one is enchanced compared to\nthe undeformable case. The distance between the centers of equal-sized\ndeformable drops decreases with time. When a small drop follows a large one,\ntwo patterns of behavior may exist. For moderate or large initial separation\nthe drops separate. However, if the initial separation is small there is a\ntransient period in which the separation distance initially decreases and only\nafterwards the drops separate. This behavior stems from the multiple time\nscales that exist in the system.",
"arxiv_id": "physics/0102072",
"authors": [
"V. Berejnov",
"O. M. Lavrenteva",
"A. Nir"
],
"categories": [
"physics.flu-dyn"
],
"title": "Interaction of two deformable viscous drops under external temperature gradient",
"url": "https://arxiv.org/abs/physics/0102072"
},
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