### Abstract

Language | English |
---|---|

Title of host publication | OpenFOAM® |

Subtitle of host publication | Selected Papers of the 11th Workshop |

Editors | João Nóbrega, Hrvoje Jasak |

Place of Publication | [S.I.] |

Publisher | Springer |

Pages | 1-14 |

Number of pages | 14 |

Edition | 1 |

ISBN (Print) | 9783319608457 |

Publication status | Published - 12 Apr 2018 |

Event | 11th OpenFOAM® Workshop - Guimarães, Portugal Duration: 26 Jun 2016 → 30 Jun 2016 http://www.openfoamworkshop.org |

### Conference

Conference | 11th OpenFOAM® Workshop |
---|---|

Country | Portugal |

City | Guimarães |

Period | 26/06/16 → 30/06/16 |

Internet address |

### Fingerprint

### Keywords

- surface-tension effects
- multi-phase flows

### Cite this

*OpenFOAM®: Selected Papers of the 11th Workshop*(1 ed., pp. 1-14). [S.I.]: Springer.

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*OpenFOAM®: Selected Papers of the 11th Workshop .*1 edn, Springer, [S.I.], pp. 1-14, 11th OpenFOAM® Workshop, Guimarães, Portugal, 26/06/16.

**Implementation of a flexible and modular multiphase framework for the analysis of surface-tension-driven flows based on a LS-VOF approach.** / Capobianchi, Paolo; Lappa, Marcello; Oliveira, Mónica S. N.

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

TY - CHAP

T1 - Implementation of a flexible and modular multiphase framework for the analysis of surface-tension-driven flows based on a LS-VOF approach

AU - Capobianchi, Paolo

AU - Lappa, Marcello

AU - Oliveira, Mónica S. N.

PY - 2018/4/12

Y1 - 2018/4/12

N2 - The mathematical modelling and numerical simulation of multi-phase flows are both a demanding and highly complex exercise. In typical problems with industrial relevance, the fluids are often in non-isothermal conditions and interfacial phenomena are a relevant part of the problem. A number of effects due to the presence of temperature differences must be adequately taken into account to make the results of numerical simulations consistent and realistic. Moreover, in general, gradients of surface tension at the interface separating two liquids are a source of numerical issues that can delay (and even prevent completely in some circumstances) the convergence of the solution algorithm. Here, we propose a fundamental and concerted approach for the simulation of the typical dynamics resulting from the presence of a dispersed phase in an external matrix in nonisothermal conditions based on the modular computer-aided design, modelling, and simulations capabilities of the OpenFOAM environment. The resulting framework is tested against the migration of a droplet induced by thermocapillary effects in the absence of gravity. The simulations are fully three-dimensional and based on an adaptive mesh refinement (AMR) strategy. We describe in detail the countermeasures taken to circumvent the problematic issues associated with the simulation of this kind of flows.

AB - The mathematical modelling and numerical simulation of multi-phase flows are both a demanding and highly complex exercise. In typical problems with industrial relevance, the fluids are often in non-isothermal conditions and interfacial phenomena are a relevant part of the problem. A number of effects due to the presence of temperature differences must be adequately taken into account to make the results of numerical simulations consistent and realistic. Moreover, in general, gradients of surface tension at the interface separating two liquids are a source of numerical issues that can delay (and even prevent completely in some circumstances) the convergence of the solution algorithm. Here, we propose a fundamental and concerted approach for the simulation of the typical dynamics resulting from the presence of a dispersed phase in an external matrix in nonisothermal conditions based on the modular computer-aided design, modelling, and simulations capabilities of the OpenFOAM environment. The resulting framework is tested against the migration of a droplet induced by thermocapillary effects in the absence of gravity. The simulations are fully three-dimensional and based on an adaptive mesh refinement (AMR) strategy. We describe in detail the countermeasures taken to circumvent the problematic issues associated with the simulation of this kind of flows.

KW - surface-tension effects

KW - multi-phase flows

UR - http://www.springer.com/gb/book/9783319608457

M3 - Chapter

SN - 9783319608457

SP - 1

EP - 14

BT - OpenFOAM®

A2 - Nóbrega, João

A2 - Jasak, Hrvoje

PB - Springer

CY - [S.I.]

ER -