Abstract
A numerical continuation method has been carried out seeking solutions for two distinct flow configurations, planar Couette flow (PCF) and laterally heated flow in a vertical slot (LHF). We found that the spanwise vortex solution in LHF identifies a new solution in PCF. The vortical structure of our new solution has the shape of a hairpin observed ubiquitously in high-Reynolds-number turbulent flow, and we believe this discovery may provide the paradigm for a hierarchical organization of coherent structures in turbulent shear layers.
Original language | English |
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Article number | 114501 |
Number of pages | 1 |
Journal | Physical Review Letters |
Volume | 102 |
Issue number | 11 |
DOIs | |
Publication status | Published - 20 Mar 2009 |
Keywords
- coherent structures
- nonlinearity
- bifurcation
- symmetry breaking
- channel flow