水电站管道水击计算的自适应网格法

Self-adaptive Method for Simulation of Water Hammer in a Pipe of a Hydropower Station

文中首次将自适应网格方法应用于水电站管道水击计算中,通过与水击的特征线法计算结果相比较,其结果更加真实合理.研究表明,这种新的研究方法对整个模拟区域间断的捕捉具有良好的适应性,提高了数值计算的精度.

In this paper,the self-adaptive method is applied to the simulation of water hammer in a pipe of hy-dropower station at the first time.Comparing the pressure of water hammer in a given pipe,the numeric results by this method are more reasonable than that by the characteristic method.It is shown that this method is more effective to catch the gap of variables and increase accuracy of the numerical results.