### Abstract

Yearly, concerns on environmental problem of the earth are rapidly growing on. One of the typical issues is desertification. To stop or suppress the harmful effects of desertification, the prediction method which can clarify the mechanism of desertification is required. For the purpose it is expected that numerical simulations are very useful. A number of research papers on sand transfer have been published in the literatures. For example, Yuasa et al. reasonably simulated the sand-transfer experiment conducted by Tominaga. However, they assumed that the sand particle trajectory is parabolic. This assumption would oversimplify the physics. Our final goals are to construct the multi-physics simulation technique which can correctly reproduce sand transfer, and, by applying it, to develop an effective prevention method for desertification. The purposes in the present study are to improve the particle trajectory computation, and to simulate the sand transfer around a cube more correctly. Comparing the numerical results with the experiments, we confirmed that the present method can quantitatively simulate the sand transfer phenomena.

Original language | English |
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Title of host publication | Proceedings of the 4th International Conference on Computational Methods for Coupled Problems in Science and Engineering, COUPLED PROBLEMS 2011 |

Pages | 1045-1053 |

Number of pages | 9 |

Publication status | Published - 1 Dec 2011 |

Event | 4th International Conference on Computational Methods for Coupled Problems in Science and Engineering, COUPLED PROBLEMS 2011 - Kos, Greece Duration: 20 Jun 2011 → 22 Jun 2011 |

### Publication series

Name | Proceedings of the 4th International Conference on Computational Methods for Coupled Problems in Science and Engineering, COUPLED PROBLEMS 2011 |
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### Conference

Conference | 4th International Conference on Computational Methods for Coupled Problems in Science and Engineering, COUPLED PROBLEMS 2011 |
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Country | Greece |

City | Kos |

Period | 20/06/11 → 22/06/11 |

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### Keywords

- Computational fluid dynamics
- Desertification
- Gas-solid two-phase flow
- Multi-physics simulation
- Sand transfer
- Turbulent flow

### Cite this

*Proceedings of the 4th International Conference on Computational Methods for Coupled Problems in Science and Engineering, COUPLED PROBLEMS 2011*(pp. 1045-1053). (Proceedings of the 4th International Conference on Computational Methods for Coupled Problems in Science and Engineering, COUPLED PROBLEMS 2011).