The mixing efficiency of open flows
Copyright policy )The mixing efficiency of open flows
Mixing in open incompressible flows is studied in a model problem with inhomogeneous passive scalar injection on an inlet boundary. As a measure of the efficiency of stirring, the bulk scalar concentration variance is bounded and the bound is shown to be sharp at low Peclet number. Although no specific flow saturating the bound at high Peclet number is produced here, the estimate is conjectured to be approached for flows possessing sufficiently sustained chaotic regions.
15 pages, 5 figures. PDFLaTeX with RevTeX4 macros
- University of Wisconsin–Madison United States
- University of Wisconsin–Oshkosh United States
- University of Minnesota United States
- University of Minnesota Morris United States
- University of Minnesota System United States
stirring, Turbulent transport, mixing, advection, diffusion, Fluid Dynamics (physics.flu-dyn), mixing, FOS: Physical sciences, Physics - Fluid Dynamics, open flows, rigorous bounds
stirring, Turbulent transport, mixing, advection, diffusion, Fluid Dynamics (physics.flu-dyn), mixing, FOS: Physical sciences, Physics - Fluid Dynamics, open flows, rigorous bounds
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