### Abstract

A cubic enclosure in which the particles are driven by a three-dimensional sinusoidal gravitational field is studied to search for the applicability limit of binary collision model in dense particle-laden flows. It is found that the minimum local void fraction of the particle-laden flow has to be over 0.6 to assure the particle overlapping extent being less than 5% with adopting the binary collision model in the simulation. In addition, the ratio of computational time step to the mean free time has to be less then 10 ^{-4} to obtain invariant prediction of the particle overlapping extent.

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

Title of host publication | Numerical Analysis and Applied Mathematics - International Conference on Numerical Analysis and Applied Mathematics 2008 |

Pages | 779-782 |

Number of pages | 4 |

DOIs | |

Publication status | Published - 2008 Oct 23 |

Event | International Conference on Numerical Analysis and Applied Mathematics, ICNAAM 2008 - Psalidi, Kos, Greece Duration: 2008 Sep 16 → 2008 Sep 20 |

### Publication series

Name | AIP Conference Proceedings |
---|---|

Volume | 1048 |

ISSN (Print) | 0094-243X |

ISSN (Electronic) | 1551-7616 |

### Other

Other | International Conference on Numerical Analysis and Applied Mathematics, ICNAAM 2008 |
---|---|

Country | Greece |

City | Psalidi, Kos |

Period | 08-09-16 → 08-09-20 |

### Fingerprint

### All Science Journal Classification (ASJC) codes

- Physics and Astronomy(all)

### Cite this

*Numerical Analysis and Applied Mathematics - International Conference on Numerical Analysis and Applied Mathematics 2008*(pp. 779-782). (AIP Conference Proceedings; Vol. 1048). https://doi.org/10.1063/1.2991046

}

*Numerical Analysis and Applied Mathematics - International Conference on Numerical Analysis and Applied Mathematics 2008.*AIP Conference Proceedings, vol. 1048, pp. 779-782, International Conference on Numerical Analysis and Applied Mathematics, ICNAAM 2008, Psalidi, Kos, Greece, 08-09-16. https://doi.org/10.1063/1.2991046

**Applicability limit of binary collision model in dense particle flow.** / Chang, Keh-Chin; Lin, Jian Hung; Liu, Yi Mei.

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

TY - GEN

T1 - Applicability limit of binary collision model in dense particle flow

AU - Chang, Keh-Chin

AU - Lin, Jian Hung

AU - Liu, Yi Mei

PY - 2008/10/23

Y1 - 2008/10/23

N2 - A cubic enclosure in which the particles are driven by a three-dimensional sinusoidal gravitational field is studied to search for the applicability limit of binary collision model in dense particle-laden flows. It is found that the minimum local void fraction of the particle-laden flow has to be over 0.6 to assure the particle overlapping extent being less than 5% with adopting the binary collision model in the simulation. In addition, the ratio of computational time step to the mean free time has to be less then 10 -4 to obtain invariant prediction of the particle overlapping extent.

AB - A cubic enclosure in which the particles are driven by a three-dimensional sinusoidal gravitational field is studied to search for the applicability limit of binary collision model in dense particle-laden flows. It is found that the minimum local void fraction of the particle-laden flow has to be over 0.6 to assure the particle overlapping extent being less than 5% with adopting the binary collision model in the simulation. In addition, the ratio of computational time step to the mean free time has to be less then 10 -4 to obtain invariant prediction of the particle overlapping extent.

UR - http://www.scopus.com/inward/record.url?scp=54049130505&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=54049130505&partnerID=8YFLogxK

U2 - 10.1063/1.2991046

DO - 10.1063/1.2991046

M3 - Conference contribution

SN - 9780735405769

T3 - AIP Conference Proceedings

SP - 779

EP - 782

BT - Numerical Analysis and Applied Mathematics - International Conference on Numerical Analysis and Applied Mathematics 2008

ER -