Abstract：In the coastal plain tidal river network with a main feature of a complicated flow pattern which is highly influenced by the boundary condition and reservoir regulation, 1D and 2D hydrodyna-mic modeling were established for the river network and the lake area, respectively, based on the ground rules of reservoirs storage capacity, multi-reservoir jointly operation and priority gate operation. The important principle of model coupling is that water level and discharge simulated by 1D and 2D model are equal respectively at the junction section. Taking the drainage planning in Liaodong Bay A-rea for example, four schemes were analyzed and the optimal size of the flood drainage gate and river cross-section were achieved. The results show that when the river cross-section remains unchanged in Scheme I and Scheme Ⅱ, the small-size flood drainage gate leads to the higher water level of the upstream. The enlargement of river cross-section has little effect on the water level when the size of flood drainage gate remains unchanged in Scheme Ⅲ and Scheme IV. Considering the perspective of drai-nage capacity and economic point of view, Scheme IV can be found as the optimal scheme. Obviously, the results could provide a technical support and reference for the local project design and the developing of the drainage planning.
王玉, 曹命凯, 杨晨霞, 王钧. 基于水动力耦合模型的平原地区排涝规划[J]. 排灌机械工程学报, 2014, 32(6): 494-499.
Wang Yu, Cao Mingkai, Yang Chenxia, Wang Jun. Drainage planning for plain areas based on coupled hydrodynamic model. Journal of Drainage and Irrigation Machinery Engin, 2014, 32(6): 494-499.
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