摘要
假设感潮河段洪水位可以视作上游洪水波和下游潮水波双向传播后的叠加,根据从水量平衡方程和槽蓄方程推导出的水位演算基本方程建立感潮河段双向波水位演算模型。通过建立理想模型采用3个试验对双向波水位演算模型的洪潮分离假设条件、模型稳定性、合理性及有效性进行分析,来论证洪潮分离理论的可行性。结果表明,基于洪潮分离理论假定建立的双向波水位演算模型结构合理,模拟精度较高。
If it is assumed that the flood and tidal waves in a tidal fiver are independent of one another, fiver stages can be considered as the superposition of hi-directional propagation, namely flood waves from the upstream and tide waves from the downstream. Based on the assumption, a hi-directional stage routing model （BSM） for a tidal fiver is developed according to the basic stage routing equation derived from the storage equation and the water balance equation. In order to prove the feasi- bility of the separation of flood and tidal waves, three tests are conducted by using the approaches of the ideal models to ana- lyze the assumption, stability, rationality and validity of the BSM. The results show that the structure of the BSM is reason- able, and its performance is satisfactory.
出处
《水科学进展》
EI
CAS
CSCD
北大核心
2009年第6期794-799,共6页
Advances in Water Science
基金
国家自然科学基金资助项目(50679024)
"十一五"国家科技支撑计划资助项目(2006BAC05B02
2008BAB29B08-02)
高等学校学科创新引智计划资助项目(B08048)
教育部长江学者和创新团队发展计划资助项目(IRT0717)~~
关键词
感潮河段
水位预报
洪潮分离
双向波
一维水动力学模型
tidal river
stage forecasting
separation of flood and tidal waves
bi-directional waves
one-dimensional hydrodynamic model
