Computational Study of Turbulent-Laminar Patterns in Couette Flow

Details Computational Study of Turbulent-Laminar Patterns in Couette Flow Computational Study of Turbulent-Laminar Patterns in Couette Flow

2004-03-30

arxiv.org/abs/physics/0403142v1

Phys. Rev. Lett. 94, 014502 (2005)

Physics

Fluid Dynamics

4 pages, 5 figures

Scientific paper

10.1103/PhysRevLett.94.014502

Turbulent-laminar patterns near transition are simulated in plane Couette flow using an extension of the minimal flow unit methodology. Computational domains are of minimal size in two directions but large in the third. The long direction can be tilted at any prescribed angle to the streamwise direction. Three types of patterned states are found and studied: periodic, localized, and intermittent. These correspond closely to observations in large aspect ratio experiments.

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