| 冰动力学的拉格郎日离散元模式 |
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| 引用本文： | 沈洪道.冰动力学的拉格郎日离散元模式[J].海洋预报,1999,16(3):71-84. |
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| 作者姓名： | 沈洪道 |
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| 作者单位： | 克拉克生大学土木环境工程系!波次坦，纽约，美国 |
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| 摘 要： | 本文描述一种应用于河冰和海冰动力学研究的平滑质点流体力学的离散元模式。该离散元方法是一种自由拉格郎日方法，和传统的欧拉网格数值方法相比，它具有较小的数值扩散并且能够更加灵活地处理复杂的冰过程等许多优点。本文首先给出海冰动力学的离散元模式的基本方法，并与欧拉有限差分方法和半拉格郎日的质点一网格方法进行了对比，其次，本文还给出了离散元海冰模式在渤海的一个应用。
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| 关 键 词： | 冰动力学 离散元方法 海冰模式 |
LAGRANGIAN DISCRETE-PARCEL MODEL FOR ICE DYNAMICS |
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| Hung Tao Shen.LAGRANGIAN DISCRETE-PARCEL MODEL FOR ICE DYNAMICS[J].Marine Forecasts,1999,16(3):71-84. |
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| Authors: | Hung Tao Shen |
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| Abstract: | A discrete-parcel model with smoothed particle hydrodynamics for river and sea ice dynamics is presented. The discrete-parcel method is a free Lagrangian method, which has many advantages over the traditional Eulerian grid-base numerical methods. It has less numerical diffusion and is more flexible in treating complex ice processes. In this paper, the formulation of the discrete-parcel method for sea ice dynamics is presented. Comparisons with Eulerian finite-difference methods and the semi-Lagrangian PIC method are given. An application of the model to Bobal Sea is presented. |
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| Keywords: | Ice dynamics Discrete-parcel method Sea ice model |
| 本文献已被 CNKI 维普 等数据库收录！ |
