二维数学模型在泵站上游水动力研究中的应用

Application of two-dimensional mathematical model in upstream hydrodynamic research of pump station

泵站上游区域的水动力条件直接关系着泵站的运行状况,因此,为了解决其水动力条件,对一维、二维、三维水动力数学模型及泵站上游不同区域的水动力特性进行了分析,根据分析结果,提出了针对不同区域采用不同类型数学模型的技术方法,并将该方法用于对化子闸泵站上游整体区域水动力特性的研究。在研究过程中,采用了含自由水面的平面二维水动力模型以及简化的二维水动力模型,对泵站前池水流分别进行了水动力特性数值模拟研究,得到了满足工程研究需求、符合物理规律的研究结果。研究结果表明:所提出的技术路线可行有效,实际采用的方法科学合理,研究成果可为类似泵站工程的设计研究提供技术支撑,也可以为其他相关工作提供参考与借鉴。

The hydrodynamic conditions in the upper reaches of the pump station are directly related to the operation of the pumping station.By analyzing the 1D,2D and 3D hydrodynamic mathematical model and the hydrodynamic characteristics of different regions in the upstream of the pump station,the technical methods using different mathematical models for different regions were put forward.We used the method to analyze the hydrodynamic characteristics of the whole regions in the upstream of the Huazizha pump station.During the research,we adopted two-dimensional plane hydrodynamic model with free water surface and the simplified two-dimensional hydrodynamic model to simulate the hydrodynamic characteristics of the forebay flow of the station.The research results meet the requirements of engineering research and are conform to the law of physics.The results show that the proposed technical route is feasible and effective,the adopted methods are scientific and justifiable.