摘要
采用河口海岸三维模型(POM模型)计算了杭州湾、长江口的潮致流场.在此基础上,对杭州湾北岸的中港、星火和金山3个排污口冬、夏两季排放的含油废水油浓度分布进行了数值模拟.计算结果表明,在杭州湾、长江口以半日潮波占支配地位,其潮流场以M2分潮为主;在长江径流的影响下,潮致余流组成不甚明显的不对称顺时针方向的涡旋,有利于污染物向杭州湾外输移.从污染物向杭州湾外输移的情况来看,以中港较为有利,星火次之,金山较差.在现有计算条件下,取排污口油浓度初值为10 mg/L,3个排污口排出的含油废水均可达到国家Ⅲ类水质的标准.
The oil pollution of wastewater containing oil in tidal areas of the Changjiang Estuary and Hangzhou Bay is calculated by using the Princeton Ocean Model （POM）, which is a three-dimensional model. The oil concentration distributions in winter and summer around the sewage outfall of Zhonggang, Xinhuo and Jinshan, located on the north coast of Hangzhou Bay, are numerically simulated. Calculation results show that the semidiurnal tidal waves are on the dominant position and the main component of tidal field is the M2 tide in the Changjiang Estuary and Hangzhou Bay; under the action of the Changjiang runoff, the tides make a clockwise whirlpool, which is favorable to conveying the pollutants towards outside of Hangzhou Bay. In the aspect of conveying the pollutants, Zhonggang is superior to the others and Xinhuo is better than Jinshan. Under the present calculation conditions, selecting the initial oil concentration around the sewage outfall as 10mg/L is suitable for attaining the third class of the national water quality standard.
出处
《水利水运工程学报》
CSCD
北大核心
2006年第1期1-7,共7页
Hydro-Science and Engineering
基金
国家自然科学基金资助项目(59779021)
关键词
油污染
污染物浓度
输移趋势
POM模型
潮汐水域
oil pollution
pollutant concentration
conveying trend
POM model
tidal areas
