考虑流-固耦合效应的空间管道水锤方法研究

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Method to Study Water Hammer with Fluid-Structure Interaction in Spatial Pipe

Mechanical Laboratory for Reactor Structure of Nuclear Power Institute ofChina, Chengdu, 610041, China

摘要: 介绍耦合水锤理论的4方程模型和其求解方式,以及利用计算流体力学(CFD)计算流-固耦合的方法,并采用文献作为算例进行水锤流-固耦合的计算。通过CFD的经典水锤计算,为流-固耦合计算选定计算格式和网格,同时与文献进行比较。结果表明,本文所用的方法可用于较复杂的管道水锤的流-固耦合计算。
- 流-固耦合 /
- 空间管道水锤 /
- 数值耗散 /
- 数值频散
Abstract: The theory of coupling 4-function models and its solution approach are first introduced in this paper,and the method of CFD to calculate fluid-structure interaction is also introduced.Finally,the model in related reference is applied with this method to simulate the process of water hammer.By CFD calculation for the classical water hammer,the numerical scheme and grid are selected,and the results of CFD are compared with reference.The results show that the method in this paper can be used in more complex pipe system to simulate the water hammer effect.
- Fluid-structure interaction /
- Water hammer in space pipe /
- Numerical dissipation /
- Numerical frequency dissipation