| 钱塘江口涌潮的二维数值模拟 |
| |
| 引用本文： | 谭维炎,韩曾萃.钱塘江口涌潮的二维数值模拟[J].水科学进展,1995,6(2):83-93. |
| |
| 作者姓名： | 谭维炎 韩曾萃 |
| |
| 作者单位： | 1.南京水文水资源研究所 南京210024; |
| |
| 摘 要： | 应用二维有限体积法、Osher格式及间断拟合法,计算了钱塘江河口涌潮产生、发展到消亡的全过程。该算法能保证水量和动量守恒,且能适应水深巨大变化和动边界。根据钱塘江涌潮的特点,可将其合理概化为一线潮。在网格尺寸较大情况下,计算的一线潮仍保持高分辨率,能准确满足水力学间断条件,且计算量小,可以在微机上实现。在对某实测半日小潮进行率定后,对随后的大潮进行了验证计算,涌潮的主要特征(如涌潮高度、移速、水位和流场等)与实测资料符合良好,证实了模型的合理性和模拟能力。
|
| 关 键 词： | 钱塘江河口 涌潮 有限体积法 守恒格式 间断拟合法 动边界处理 |
| 收稿时间： | 1994-05-20 |
Two-Dimensional Numerical Modelling of Bores in the Qiantang Estuary |
| |
| Tan Weiyan,Hu Siyi,Han Zengcui,Pan Cunhong,Lou Yuping,Mao Xizhong.Two-Dimensional Numerical Modelling of Bores in the Qiantang Estuary[J].Advances in Water Science,1995,6(2):83-93. |
| |
| Authors: | Tan Weiyan Hu Siyi Han Zengcui Pan Cunhong Lou Yuping Mao Xizhong |
| |
| Affiliation: | 1.Nanjing institute of Hydrology and Water Resources, Nanjing 210024;2.Zhejiang Provincial institute of Estuaries and COasts, Hangzhou 310009 |
| |
| Abstract: | Histories of Gores in the Qiantang Estuary,are modelled by using a two-dimensional finite-volume,Osher scheme,and a discontinuity-fitting method. The algorithm ensures mass and momentum conservation,and can be applied to cases with irregular morphography,and moving boundaries. Based on a simplification a line-bore,the modelling can be done on a coarse mesh by a microcomputer,After having calibrated against a typical semi-diurnal tide,the model is used to predict the succeeding semi-diurnal tide for validating its reasonability and applicability. |
| |
| Keywords: | Qiantang Estuary bore finite volume method conservative upwind scheme discontiuity-fitting method moving boundary procedure |
| 本文献已被 维普 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 |
|
