水利水电科技进展Issue(6)：13-19,7.DOI:10.3880/j.issn.1006-7647.2015.06.003
钱塘江河口盐水入侵影响因素及数值预报
Factors and numerical forecast of saltwater intrusion in Qiantang River Estuary
摘要
Abstract
Using a finite volume method based on the Godunov scheme, a two-dimensional saltwater intrusion mathematical model considering the tidal bore effect was established for forecasting chlorinity at water intakes in the Qiantang River Estuary. Based on field data and computational results from the mathematical model, the effects of main factors, including runoff, tides and tidal bore, and riverbed topography, on saltwater intrusion were analyzed. Results show that the riverbed topography affects saltwater intrusion indirectly through changing tides. The larger the river volume is, the larger the tidal range and tidal prism are, leading to intensification of saltwater intrusion. The tidal bore also enhances saltwater intrusion, as chlorinity changes abruptly before and after the tidal bore. Application of the established model in chlorinity prediction shows that the computational results of the model agree with the field data, and the model has significant application value in chlorinity prediction.关键词
钱塘江河口/盐水入侵/涌潮/Godunov格式/氯度预报Key words
Qiantang River Estuary/saltwater intrusion/tidal bore/Godunov scheme/chlorinity prediction分类
建筑与水利引用本文复制引用
潘存鸿,张舒羽,史英标,鲁海燕..钱塘江河口盐水入侵影响因素及数值预报[J].水利水电科技进展,2015,(6):13-19,7.基金项目
国家自然科学基金(51379190) （51379190）
水利部公益性行业科研专项(201001072) （201001072）
浙江省重点科技创新团队项目(2010R50035) （2010R50035）
