Evolution of the vorticity-area density during the formation of coherent structures in two-dimensional flows
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| Publication date | 2000 |
| Journal | Physics of Fluids |
| Volume | Issue number | 12 | 10 |
| Pages (from-to) | 2514-2521 |
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| Abstract | It is shown: (1) that in two-dimensional, incompressible, viscous flows the vorticity-area distribution evolves according to an advection-diffusion equation with a negative, time dependent diffusion coefficient and (2) how to use the vorticity-stream function relations, i.e., the so-called scatter-plots, of the quasi-stationary coherent structures in order to quantify the experimentally observed changes of the vorticity distribution moments leading to the formation of these structures. |
| Document type | Article |
| Published at | https://doi.org/10.1063/1.1287924 |
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