水利学报Issue(11)：1301-1309,9.DOI:10.13243/j.cnki.slxb.2014.11.005
涌潮对钱塘江河口盐水入侵影响研究
Study on saltwater intrusion in Qiantang estuary affected by tidal bore
摘要
Abstract
With strong tide, rapid flow and turbulent tidal bore, Qiantang Estuary is a typical well-mixed one. Its saltwater intrusion is far stronger than other tidal estuaries. Based on a finite volume method with Godunov scheme, a 2D saltwater intrusion mathematical model affected by tidal bore was established. Com⁃bining with the field data analysis for tide,tidal bore and chlorinity,the effect of the tidal bore on saltwa⁃ter intrusion of Qiantang Estuary was studied. The tidal bore increases the aggravation of saltwater intru⁃sion,resulting in intensification of the gradient in time domain and in lengthways. The tidal bore is the ki⁃netic mechanism to form salinity front. Meanwhile,the fierce and turbulent tidal bore makes chlorinity even in vertical distribution. In addition, the value of chloride diffusion coefficient in the chlorinity control equa⁃tion has been discussed, and it is appropriate to take the diffusion coefficient in Qiantang Estuary for 102 m2/s magnitude.关键词
钱塘江河口/盐水入侵/涌潮/扩散系数/Godunov格式/盐度锋Key words
Qiantang Estuary/saltwater intrusion/tidal bore/diffusion coefficient/Godunov scheme/salin-ity front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,谢东风..涌潮对钱塘江河口盐水入侵影响研究[J].水利学报,2014,(11):1301-1309,9.基金项目
国家自然科学基金资助项目（51379190）；国家水体污染控制与治理科技重大专项（2009ZX07424-001）；水利部公益性行业科研专项（201001072）；浙江省重点科技创新团队 （）
