Chikkadi, Vijayakumar ; Sameen, A. ; Govindarajan, Rama (2005) Preventing transition to turbulence: a viscosity stratification does not always help Physical Review Letters, 95 (26). 264504_1-264504_4. ISSN 0031-9007
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Official URL: http://prl.aps.org/abstract/PRL/v95/i26/e264504
Related URL: http://dx.doi.org/10.1103/PhysRevLett.95.264504
Abstract
In channel flows a step on the route to turbulence is the formation of streaks, often due to algebraic growth of disturbances. While a variation of viscosity in the gradient direction often plays a large role in laminar-turbulent transition in shear flows, we show that it has, surprisingly, little effect on the algebraic growth. Nonuniform viscosity therefore may not always work as a flow-control strategy for maintaining the flow as laminar.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to The American Physical Society. |
| ID Code: | 62422 |
| Deposited On: | 22 Sep 2011 03:23 |
| Last Modified: | 22 Sep 2011 03:23 |
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