Critical Point for Bifurcation Cascades and Featureless Turbulence.
- Canton J Computational Science and Engineering Laboratory, ETH Zurich, CH-8092 Zurich, Switzerland.
- Rinaldi E Linné FLOW Centre KTH Mechanics, Royal Institute of Technology, SE-100 44 Stockholm, Sweden.
- Örlü R Linné FLOW Centre KTH Mechanics, Royal Institute of Technology, SE-100 44 Stockholm, Sweden.
- Schlatter P Linné FLOW Centre KTH Mechanics, Royal Institute of Technology, SE-100 44 Stockholm, Sweden.
- 2020-01-25
Published in:
- Physical review letters. - 2020
English
In this Letter we show that a bifurcation cascade and fully sustained turbulence can share the phase space of a fluid flow system, resulting in the presence of competing stable attractors. We analyze the toroidal pipe flow, which undergoes subcritical transition to turbulence at low pipe curvatures (pipe-to-torus diameter ratio) and supercritical transition at high curvatures, as was previously documented. We unveil an additional step in the bifurcation cascade and provide evidence that, in a narrow range of intermediate curvatures, its dynamics competes with that of sustained turbulence emerging through subcritical transition mechanisms.
- Language
-
- English
- Open access status
- green
- Identifiers
-
- DOI 10.1103/PhysRevLett.124.014501
- PMID 31976718
- Persistent URL
- https://sonar.ch/global/documents/188081
Statistics
Document views: 64
File downloads:
- Full-text: 0