人民黄河2016,Vol.38Issue(4):1-6,6.DOI:10.3969/j.issn.1000-1379.2016.04.001
弯曲型感潮河口泥沙输移规律的数值模拟
Numerical Simulation of Sediment Transfer in the Curved-Shaped Tidal Estuary
摘要
Abstract
This paper used Flow Model FM of the MIKE 21 software to conduct numerical simulation to the curved⁃shaped tidal estuary under different upstream traffic and different median sizes, and verified the numerical model through actually measured data, revealed the general rules of the estuary evolution, geomorphology and tidal sediment of the curved⁃shaped tidal estuary, providing important grounds for estuary improvement projects. The simulation results show that a curved⁃shaped tidal estuary basically has the same changing pattern in wet seasons, normal seasons and dry seasons;different sizes have very small influence to the water level, the tidal levels plays a dominating role;in wet seasons, erosion areas are mainly concentrated in the entrance section of the left along the direction of the flow, the curve section of the concave bank and the exit section of the left bank, the deposition areas are mainly concentrated in the curve section of the convex bank;in the normal seasons, the bed elevations are deposited at the exit section and eroded at the entrance section in the same period; in the dry seasons, the bed elevations are deposited at the curve section and eroded at the entrance section in the same period.关键词
数值模拟/泥沙输移/感潮河口/弯曲型河口Key words
numerical simulation/sediment transfer/tidal estuary/curved-shaped estuary分类
建筑与水利引用本文复制引用
郭维东,田茹妍,李东斌,刘冰..弯曲型感潮河口泥沙输移规律的数值模拟[J].人民黄河,2016,38(4):1-6,6.基金项目
国家自然科学基金资助项目(40071183);国家水体污染控制与治理科技重大专项(2012ZX07202-004-01);沈阳市科学技术计划项目( F10-097-3-00)。 ()