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Article information
On the role of linear mechanisms in transition to turbulence.
| Authors: |
Henningson, D.S.H.,
Reddy, S.,
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| Type: |
Article |
| Pubstate: |
Published |
| Journal: |
Phys. Fluids |
| Volume: |
6
1396-1398 |
| Year: |
1994 |
Abstract
Recent work has shown that linear mechanisms can lead to substantial transient growth
in the energy of small disturbances in incompressible flows even when the Reynolds
number is below the critical value predicted by linear stability (eigenvalue) analysis. In
this note it is shown that linear growth mechanisms are necessary for transition in flows
governed by the incompressible Navier-Stokes equations and that non-normality of the
linearized Navier-Stokes operator is a necessary condition for subcritical transition
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