Abstract
We study the robustness of the vortex street behind a circular cylinder when there is transfer of momentum between the wake and the surrounding fluid. The model used to represent exchanges of momentum is based on Lévy walks, as implemented in lattice-gas hydrodynamics. We show that the transverse velocity, considered as a function of the maximum length of exchanges, is a good order parameter for describing how the coherence of the vortex street is affected by transport of fluid in and out of it.
| Original language | English |
|---|---|
| Pages (from-to) | 470-473 |
| Number of pages | 4 |
| Journal | Physical Review E |
| Volume | 49 |
| Issue number | 1 |
| DOIs | |
| State | Published - 1994 |
| Externally published | Yes |