dorsal/arxiv
View SchemaShark skin effect in creeping films
| Authors | M. Scholle, N. Aksel |
|---|---|
| Categories | |
| ArXiv ID | physics/0605232 |
| URL | https://arxiv.org/abs/physics/0605232 |
Abstract
If a body in a stream is provided with small ridges aligned in the local flow direction, a remarkable drag reduction can be reached under turbulent flow conditions. This surprising phenomenon is called the 'shark skin effect'. We demonstrate, that a reduction of resistance can also be reached in creeping flows if the ridges are aligned perpendicular to the flow direction. We especially consider in gravity-driven film flows the effect of the bottom topography on the mean transport velocity.
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"date_created": "2026-03-02T18:01:07.604000Z",
"date_modified": "2026-03-02T18:01:07.604000Z",
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"abstract": "If a body in a stream is provided with small ridges aligned in the local flow\ndirection, a remarkable drag reduction can be reached under turbulent flow\nconditions. This surprising phenomenon is called the \u0027shark skin effect\u0027. We\ndemonstrate, that a reduction of resistance can also be reached in creeping\nflows if the ridges are aligned perpendicular to the flow direction. We\nespecially consider in gravity-driven film flows the effect of the bottom\ntopography on the mean transport velocity.",
"arxiv_id": "physics/0605232",
"authors": [
"M. Scholle",
"N. Aksel"
],
"categories": [
"physics.flu-dyn"
],
"title": "Shark skin effect in creeping films",
"url": "https://arxiv.org/abs/physics/0605232"
},
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