### Abstract

Original language | English |
---|---|

Title of host publication | Fluid Dynamics in Physics, Engineering and Environmental Applications |

Editors | J. Klapp, A. Medina, A. Cros, C. Vargas |

Publisher | Springer |

Pages | 139-157 |

Number of pages | 19 |

ISBN (Print) | 978-3-642-27722-1 |

DOIs | |

Publication status | Published - 2013 |

Event | conference; XVII Annual and Enzo Levi 2011 Meetings of the Fluid Dynamics Division of the Mexican Physical Society - Duration: 1 Jan 2013 → … |

### Publication series

Name | Environmental Science and Engineering |
---|---|

ISSN (Print) | 1863-5520 |

### Conference

Conference | conference; XVII Annual and Enzo Levi 2011 Meetings of the Fluid Dynamics Division of the Mexican Physical Society |
---|---|

Period | 1/01/13 → … |

Other | XVII Annual and Enzo Levi 2011 Meetings of the Fluid Dynamics Division of the Mexican Physical Society |

### Fingerprint

### Cite this

*Fluid Dynamics in Physics, Engineering and Environmental Applications*(pp. 139-157). (Environmental Science and Engineering). Springer. https://doi.org/10.1007/978-3-642-27723-8_9

}

*Fluid Dynamics in Physics, Engineering and Environmental Applications.*Environmental Science and Engineering, Springer, pp. 139-157, conference; XVII Annual and Enzo Levi 2011 Meetings of the Fluid Dynamics Division of the Mexican Physical Society, 1/01/13. https://doi.org/10.1007/978-3-642-27723-8_9

**Formation of coherent structures in a class of realistic 3D unsteady flows.** / Speetjens, M.F.M.; Clercx, H.J.H.

Research output: Chapter in Book/Report/Conference proceeding › Chapter › Academic

TY - CHAP

T1 - Formation of coherent structures in a class of realistic 3D unsteady flows

AU - Speetjens, M.F.M.

AU - Clercx, H.J.H.

PY - 2013

Y1 - 2013

N2 - The formation of coherent structures in three-dimensional (3D) unsteady laminar flows in a cylindrical cavity is reviewed. The discussion concentrates on two main topics: the role of symmetries and fluid inertia in the formation of coherent structures and the ramifications for the Lagrangian transport properties of passive tracers. We consider a number of time-periodic flows that each capture a basic dynamic state of 3D flows: 1D motion on closed trajectories, (quasi-)2D motion within (approximately) 2D subregions of the flow domain and truly 3D chaotic advection. It is shown that these states and their corresponding coherent structures are inextricably linked to symmetries (or absence thereof) in the flow. Symmetry breaking by fluid inertia and the resulting formation of intricate coherent structures and (local) onset of 3D chaos is demonstrated. Finally, first experimental analyses on coherent structures and the underlying role of symmetries are discussed.

AB - The formation of coherent structures in three-dimensional (3D) unsteady laminar flows in a cylindrical cavity is reviewed. The discussion concentrates on two main topics: the role of symmetries and fluid inertia in the formation of coherent structures and the ramifications for the Lagrangian transport properties of passive tracers. We consider a number of time-periodic flows that each capture a basic dynamic state of 3D flows: 1D motion on closed trajectories, (quasi-)2D motion within (approximately) 2D subregions of the flow domain and truly 3D chaotic advection. It is shown that these states and their corresponding coherent structures are inextricably linked to symmetries (or absence thereof) in the flow. Symmetry breaking by fluid inertia and the resulting formation of intricate coherent structures and (local) onset of 3D chaos is demonstrated. Finally, first experimental analyses on coherent structures and the underlying role of symmetries are discussed.

U2 - 10.1007/978-3-642-27723-8_9

DO - 10.1007/978-3-642-27723-8_9

M3 - Chapter

SN - 978-3-642-27722-1

T3 - Environmental Science and Engineering

SP - 139

EP - 157

BT - Fluid Dynamics in Physics, Engineering and Environmental Applications

A2 - Klapp, J.

A2 - Medina, A.

A2 - Cros, A.

A2 - Vargas, C.

PB - Springer

ER -