dorsal/arxiv
View SchemaA novel shear flow instability triggered by a chemical reaction in the absence of inertia
| Authors | T. Burghelea, K. Wielage-Burchard, I. A. Frigaard, D. M. Martinez, J. J. Feng |
|---|---|
| Categories | |
| ArXiv ID | physics/0611116 |
| URL | https://arxiv.org/abs/physics/0611116 |
Abstract
We present an experimental investigation of a novel low Reynolds number shear flow instability triggered by a chemical reaction. An acid-base reaction taking place at the interface between a Newtonian fluid and Carbopol-940 solution leads to a strong viscosity stratification, which locally destabilizes the flow. Our experimental observations are made in the context of a miscible displacement flow, for which the flow instability promotes local mixing and subsequently improves the displacement efficiency. The experimental study is complemented by a simplified normal mode analysis to shed light on the origin of the instability
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"date_created": "2026-03-02T18:01:14.744000Z",
"date_modified": "2026-03-02T18:01:14.744000Z",
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"abstract": "We present an experimental investigation of a novel low Reynolds number shear\nflow instability triggered by a chemical reaction. An acid-base reaction taking\nplace at the interface between a Newtonian fluid and Carbopol-940 solution\nleads to a strong viscosity stratification, which locally destabilizes the\nflow. Our experimental observations are made in the context of a miscible\ndisplacement flow, for which the flow instability promotes local mixing and\nsubsequently improves the displacement efficiency. The experimental study is\ncomplemented by a simplified normal mode analysis to shed light on the origin\nof the instability",
"arxiv_id": "physics/0611116",
"authors": [
"T. Burghelea",
"K. Wielage-Burchard",
"I. A. Frigaard",
"D. M. Martinez",
"J. J. Feng"
],
"categories": [
"physics.flu-dyn"
],
"title": "A novel shear flow instability triggered by a chemical reaction in the absence of inertia",
"url": "https://arxiv.org/abs/physics/0611116"
},
"schema_id": "dorsal/arxiv",
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"variant": "snapshot-2026-03-01",
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