Application Research On Computer Simulation Of Flows At The Gates Of The Dam

In recent years, with improved the computer performance and the numerical method, CFD (computational fluid dynamics) technology has been rapidly developed. Many common commercial mobile computing software come out one after another, and in the flow simulation of inlet and outlet of the dam water road have been applied, now has become the main tools of current in-house engineering study of the flow. The FLUENT software is the most comprehensive and wide applicability. In this paper, on the basis of a lot of reading, by the application of computational fluid dynamics software FLUENT, computer simulation of the flows at the gate of the dam is carried out. The main researches are summarized as follows:(1) It briefly introduces the meaning of computer simulation of the flows at the gate of the dam, the current application state and the development of computer simulation and FLUENT in hydraulic engineering and development are reviewed.(2) It mainly explained FLUENT software and its applications, and also introduced the basic steps of the finite volume method widely used in the CFD and the expansion equation coupled SIMPLE method solved the flow velocity, pressure and so on.(3) By the use of pre-FLUENT software GAMBIT for modeling and FLUENT solver for calculation, the use of standard turbulenceκ?εmodel and numerical model based on the hybrid model for numerical, the water characteristics including the velocity and pressure distribution, of two-dimensional plane, are studied. At the same time, the water flow characteristics in a variety of body gates of the dam are researched. The right size gates of the dam have been gotten by comparison, that is, the use of elliptic curves gates of the dam is able to significantly raise the dam anti-cavitation performance. The computer simulation results and previous research are more in line that FLUENT software on the complex calculation of turbulent flow characteristics is applied.(4) By combination the concrete engineering of deep hole in the import flood discharge in JI Lin Tai hydropower station, three-dimensional computer modeling and calculations of the flows at the gate of the dam is carried out. As the results between the computer simulation and the test measurements are basically the same, velocity distribution and pressure distribution of the flows at the gate of the dam are obtained.