摘要
感潮河段受到密度流的影响,而水体密度不仅受盐度影响而且还受温度影响,为了做好感潮河段的盐水入侵及温排水扩散情况预测,该文建立了一个采用正交曲线坐标系、能同时考虑温度与盐度场以及密度流影响的三维水流与水质数学模型。用该模型模拟了天然感潮河段的盐水入侵与温度变化情况,并与实测结果进行了比较分析,结果表明水温与盐度沿水深方向分层分布,且越往上游上下层温差与盐度差越小,该计算结果与实测值吻合良好。
Tidal river is generally effected by density flow, while water density is effected by not only salt but also temperature of water. In order to predict the condition of salt water intrusion and the diffusion condition of thermal water in tidal river, a three-dimension model was developed to calculate water temperature and salt fields for a tidal river. The model was developed by using orthogonal curvilinear coordinates, and with the consideration of density flow. The model was used to simulate the salt water intrusion and water temperature variation in a natural tidal river. The calculation indicated that both temperature and salt of water had layered distributions along depth direction, the results of comparisons between calculations and measurements showed good agreements .
出处
《水动力学研究与进展（A辑）》
CSCD
北大核心
2010年第4期566-572,共7页
Chinese Journal of Hydrodynamics
基金
福建省自然科学基金计划资助项目(2007J0309)
留学回国人员科研启动基金项目
关键词
感潮河段
盐水入侵
温排水
三维数值模拟
tidal river
salt water intrusion
thermal discharge
three dimensional simulation
