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本文用二元瞬变流拟特征线法,提供了压力波通过调压塔与管路连接处时,压力波传播平面状况的数值分析,并用在断面突然扩大及突然收缩处压力波传播的数值解与解析解相比较,论证了本文使用的二元拟特征线法的准确性及有效性。此外,还提供了二元拟特征线法与一元特征线法在断面突然扩大和调压塔与管路连接处压力波传播的计算结果比较。
In this paper, we use the pseudo-characteristic method of binary transient flow to provide the numerical analysis of the pressure wave propagation plane when the pressure wave passes through the connection between the pressure regulating tower and the pipeline and is used in the numerical simulation of pressure wave propagation in a sudden expansion and sudden contraction Compared with the analytical solution, the feasibility and effectiveness of the proposed method of bivariate quasi-characteristic line method are demonstrated. In addition, the method of binary quasi-characteristic line method and one-dimensional characteristic line method are provided for the sudden expansion of the section and the comparison of the pressure wave propagation at the connection between the pressure regulating tower and the pipeline.