| 松花江白山河段冰情数值计算及分析 |
| |
| 引用本文： | 樊霖,茅泽育,吴剑疆,齐文彪.松花江白山河段冰情数值计算及分析[J].水科学进展,2016,27(6):890-897. |
| |
| 作者姓名： | 樊霖 茅泽育 吴剑疆 齐文彪 |
| |
| 作者单位： | 1.清华大学水利水电工程系, 北京 100084; |
| |
| 基金项目： | 国家重点研发计划项目（2016YFC0402504）；清华大学博士生短期出国访学基金（2013118） |
| |
| 摘 要： | 根据水动力学、河流动力学、热力学、河冰水力学及固体力学等原理，针对松花江上游白山河段具体特征，建立了河冰数学模型，并应用有限差分计算方法，对白山河段冬季冰情演变进行了精确模拟。应用该河段1958-1973年共15年完整的地形、气象、水文、热力、冰情等原型观测资料，分别进行了模型参数率定及冰情数值模拟。研究结果表明:白山河段的封冻首先开始于白山坝址下游4 km的大崴子河段，然后封冻边缘逐渐上溯，最终到达松14断面；计算的白山河段冰花堆积体外形与河床纵剖面呈相似趋势；各种水力及冰情要素的数值计算结果和实测值吻合较好，所建立的数值模型能较好地模拟该河道的冰情。研究结果对东北地区河流冬季冰情研究及冰害防治具有一定的借鉴意义。
|
| 关 键 词： | 河流冰情 河冰数值模拟 天然河道 松花江白山河段 |
| 收稿时间： | 2016-03-02 |
Study on the numerical model of river ice for the Baishan reach of Songhua River,China |
| |
| FAN Lin,MAO Zeyu,WU Jianjiang,QI Wenbiao.Study on the numerical model of river ice for the Baishan reach of Songhua River,China[J].Advances in Water Science,2016,27(6):890-897. |
| |
| Authors: | FAN Lin MAO Zeyu WU Jianjiang QI Wenbiao |
| |
| Affiliation: | 1.Department of Hydraulic Engineering, Tsinghua University, Beijing 100084, China;2.General Institute for Water Resources and Hydropower Planning and Design, Beijing 100120, China;3.Water Conservancy and Hydropower Survey and Design Institute of Jilin Province, Changchun 130021, China |
| |
| Abstract: | Based on the latest research both on the mechanisms of river ice and on the theories of hydrodynamics, river mechanics, thermodynamics, river ice hydraulics, and mechanics of solids, this study developed a synthetic and dynamic mathematic model of river ice for the Baishan reach of the Songhua River (China). This model incorporates hydraulic, ice transport, thermal, and ice components, and the equations of the model are solved numerically using a finite difference method. The presented model was validated fully against 15-year series of comprehensive field observations including geomorphological, meteorological, hydrological, thermodynamic, and ice regime data, and the calculated results agreed well with the measured data. This study revealed that the Dawaizi reach, which is 4 km downstream of the Baishan dam, freezes first, and then the front of the ice cover progresses gradually upstream. Furthermore, the shape of the accumulated frazil ice on the underside of the ice cover is similar to that of the longitudinal profile of the riverbed in the Baishan reach. The presented results will be of value to studies of both river ice and ice damage control in northeastern China and in other cold regions. |
| |
| Keywords: | river ice conditions numerical simulation natural river courses Baishan reach of Songhua River |
|
| 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 |
|
