dorsal/arxiv
View SchemaSubcritical turbulent transition in rotating and curved shear flows
| Authors | P-Y. Longaretti, O. Dauchot |
|---|---|
| Categories | |
| ArXiv ID | physics/0509156 |
| URL | https://arxiv.org/abs/physics/0509156 |
Abstract
The effects of global flow rotation and curvature on the subcritical transition to turbulence in shear flows are examined. The relevant time-scales of the problem are identified by a decomposition of the flow into a laminar and a deviation from laminar parts, which is performed for rotating plane Couette and Taylor-Couette flows. The usefulness and relevance of this procedure are discussed at the same time. By comparing the self-sustaining process time-scale to the time-scales previously identified, an interpretation is brought to light for the behavior of the transition Reynolds number with the rotation number and relative gap width in the whole neighborhood (in parameter space) of the non-rotating plane Couette flow covered by the available data.
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"abstract": "The effects of global flow rotation and curvature on the subcritical\ntransition to turbulence in shear flows are examined. The relevant time-scales\nof the problem are identified by a decomposition of the flow into a laminar and\na deviation from laminar parts, which is performed for rotating plane Couette\nand Taylor-Couette flows. The usefulness and relevance of this procedure are\ndiscussed at the same time. By comparing the self-sustaining process time-scale\nto the time-scales previously identified, an interpretation is brought to light\nfor the behavior of the transition Reynolds number with the rotation number and\nrelative gap width in the whole neighborhood (in parameter space) of the\nnon-rotating plane Couette flow covered by the available data.",
"arxiv_id": "physics/0509156",
"authors": [
"P-Y. Longaretti",
"O. Dauchot"
],
"categories": [
"physics.flu-dyn",
"astro-ph"
],
"title": "Subcritical turbulent transition in rotating and curved shear flows",
"url": "https://arxiv.org/abs/physics/0509156"
},
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