## Abstract

Mean streaming is often observed in precessing cylinder flows, yet the exact mechanism of its creation remains obscure. By Reynolds-decomposition of the Navier–Stokes equation for a rotating frame of reference, we identify two forcing terms which, when applied to an axisymmetric simulation, generate a streaming flow identical to that obtained from a full three-dimensional simulation. These

terms are (i), the usual Reynolds-stress term, and (ii), a term originating from the Coriolis term. The latter accounts for most of the energy of the streaming flow at small nutation angles.

terms are (i), the usual Reynolds-stress term, and (ii), a term originating from the Coriolis term. The latter accounts for most of the energy of the streaming flow at small nutation angles.

Original language | English |
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Title of host publication | Contributions to the Foundations of Multidisciplinary Research in Mechanics |

Subtitle of host publication | Papers presented during the 24th International Congress of Theoretical and Applied Mechanics ICTAM2016, Montreal 22-26, 2016 |

Editors | J.M. Floryan |

Publisher | International Union of Theoretical and Applied Mechanics |

Pages | 1616-1617 |

Number of pages | 2 |

ISBN (Electronic) | 9780660054599 |

Publication status | Published - 1 Aug 2016 |

Event | International Congress of Theoretical and Applied Mechanics 2016 - Montreal, Canada Duration: 21 Aug 2016 → 26 Aug 2016 Conference number: 24th |

### Conference

Conference | International Congress of Theoretical and Applied Mechanics 2016 |
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Abbreviated title | ICTAM 2016 |

Country | Canada |

City | Montreal |

Period | 21/08/16 → 26/08/16 |