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

本文采用平面分层模型，对分层水库中富营养化现象与沃茨水力特性耦合进行了数值研究。仿真模型采用曲线正交坐标系，从流体动力学原理出发推导，有利于真实地反映实际流场的几何特征。本文对牟罗水库浮游植物水华进行了数值分析，并对计算结果进行了讨论，成功地验证了所提出的方法，此外，还讨论了与浮游植物水华有关的水流水力特性、水质参数的变化及其相互关系，得到了一些有趣的结论。这些结果都是以往研究中没有发现的新的、富有成果的结果。通过模拟研究表明了本方法的可行性。

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.