Three-Dimensional Analysis of Reservoir Hydraulics in Terms of Curvilinear Orthogonal Coordinate Systems

本文采用平面多层模型，对层状水库富营养化现象与水库蓄水水力行为耦合进行了数值研究。仿真模型从流体力学原理出发，利用曲线正交坐标系进行推导，有利于实现实际流场的几何特征。对Muroh水库的浮游植物水华进行了数值分析，并对计算结果进行了讨论，验证了所提出的方法的正确性，进而讨论了浮游植物水华的水流特性、水质参数的变化以及它们之间的关系，得出了一些有趣的结论。这些结果是过去研究中没有披露的新的和富有成果的结果。通过模拟研究，表明了本方法的有效性。

This paper deals with the numerical study of eutrophication phenomena coupled with the hydraulic behaviors of stored waters in a stratified reservoir by means of the plane multi-layered models. The simulation models are deduced from the hydrodynamic principles by making use of the curvilinear orthgonal coordinate system, which is favorable to realization of the geometrical features in the actual flow field. The numerical analysis concerning the phytoplankton blooms is made in the Muroh Reservoir and the results computed are discussed with a successful verification of the proposed procedures.Furthermore, the hydraulic behaviors of flow, the change of water quality parameters concerning the phytoplankton blooms and the relation of them were discussed and interesting conclusions were obtained. These results are new and fruitful ones which were not disclosed in past studies. Usefulness of the present procedures has then been indicated through the simulation study.