分析管道顺序输送水力瞬变的动态网格特征线计算法

Calculating Method of Dynamic Grids Characteristics for Analyzing Hydraulic Transient in Batching Transportation Process of Pipeline

根据水击波传播的规律,提出了基于动态网格技术的特征线算法,有效解决了顺序输送水力瞬变的模拟计算问题。该方法物理意义明确,可灵活选取计算时步,且不存在数值振荡问题。实例计算结果表明,该方法模拟结果与实测值吻合较好。

According to propagation principle of surge wave,a new characteristics method based on dynamic grids is proposed in the paper,which can simulate and calculate hydraulic transient effectively in batching transportation.The method has explicit physical significations and a good flexibility to choose time step and numerical oscillation dose not occur.The calculation case shows that the simulated results obtained by this method agree with tested results.