| 计算明渠非恒定流的一个Lattice BGK模型 |
| |
| 引用本文： | 程永光,索丽生.计算明渠非恒定流的一个Lattice BGK模型[J].水科学进展,2000,11(4):362-367. |
| |
| 作者姓名： | 程永光 索丽生 |
| |
| 作者单位： | 河海大学水电工程学院, 江苏南京210098 |
| |
| 基金项目： | 国家自然科学基金项目(50009007)。 |
| |
| 摘 要： | 分析了Lattice Boltzmann(LB)方法的建模原理,通过比较LB的多尺度方程和明渠St.Venant方程,建立了计算一维明渠非恒定流的一个Lattice BGK模型。对几个典型应用实例进行了模拟分析,与Preissmann隐格式及特征线法作了比较,证明将该方法引入实际明渠非恒定流计算是可行的。
|
| 关 键 词： | 明渠 非恒定流 模拟 Lattice Boltzmann方法 |
| 文章编号： | 1001-6791(2000)04-0362-06 |
| 收稿时间： | 1999-09-16 |
| 修稿时间： | 1999年9月16日 |
A Lattice BGK Model for Simulating One-Dimensional Unsteady Open Channel Flows |
| |
| CHENG Yong-guang,SUO Li-sheng.A Lattice BGK Model for Simulating One-Dimensional Unsteady Open Channel Flows[J].Advances in Water Science,2000,11(4):362-367. |
| |
| Authors: | CHENG Yong-guang SUO Li-sheng |
| |
| Affiliation: | Hohai University, Nanjing 210098, China |
| |
| Abstract: | A lattice BGK model for one-dimensional unsteady open channel flows is established by analyzing the multi-scale equations of the LB method and St. Venant equations. Some classical and practical flows, such as unsteady open channel flows in headraces of hydropower plants and dam break waves, are simulated by the LB scheme. The LB results are in good agreement with the results of implicit Preissmann scheme and the method of characteristics. It is shown that the LB method is a feasible and accurate approach to simulate one-dimensional unsteady open channel flows in engineering. |
| |
| Keywords: | unsteady open-channel flow simulation lattice Boltzmann method |
| 本文献已被 维普 万方数据 等数据库收录！ |
| 点击此处可从《水科学进展》浏览原始摘要信息 |
|
点击此处可从《水科学进展》下载全文 |
