dorsal/arxiv
View SchemaGravity-free hydraulic jumps and metal femtocups
| Authors | Rama Govindarajan, Manikandan Mathur, Ratul DasGupta, N. R. Selvi, Neena Susan John, G. U. Kulkarni |
|---|---|
| Categories | |
| ArXiv ID | physics/0610021 |
| URL | https://arxiv.org/abs/physics/0610021 |
Abstract
Hydraulic jumps created by gravity are seen every day in the kitchen sink. We show that at small scales a circular hydraulic jump can be created in the absence of gravity, by surface tension. The theory is motivated by our experimental finding of a height discontinuity in spreading submicron molten metal droplets created by pulsed-laser ablation. By careful control of initial conditions, we show that this leads to solid femtolitre cups of gold, silver, copper, niobium and tin.
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"abstract": "Hydraulic jumps created by gravity are seen every day in the kitchen sink. We\nshow that at small scales a circular hydraulic jump can be created in the\nabsence of gravity, by surface tension. The theory is motivated by our\nexperimental finding of a height discontinuity in spreading submicron molten\nmetal droplets created by pulsed-laser ablation. By careful control of initial\nconditions, we show that this leads to solid femtolitre cups of gold, silver,\ncopper, niobium and tin.",
"arxiv_id": "physics/0610021",
"authors": [
"Rama Govindarajan",
"Manikandan Mathur",
"Ratul DasGupta",
"N. R. Selvi",
"Neena Susan John",
"G. U. Kulkarni"
],
"categories": [
"physics.flu-dyn",
"cond-mat.mtrl-sci",
"nlin.CD"
],
"title": "Gravity-free hydraulic jumps and metal femtocups",
"url": "https://arxiv.org/abs/physics/0610021"
},
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