不同隐格式法在工程实例中的应用

Application of Different Implicit Methods into Engineering Project

采用preissmann隐格式法和特征隐格式法对同一工程输水运行时的明满流现象进行了数值模拟,具体介绍了两种数学模型的不同之处以及边界处理方法,并对计算结果进行分析和比较,提出在计算明满流时特征隐格式法较preissmann隐格式法适用性强。

The article applyied the preissmann implicit method and characteristic implicit method to simulate the water free-surface-pressurized flow of the same engineering project,the differences in Both boundary treatment and computational process were introduced concretely,moreover it compared and analyzed the result,and proved that characteristic implicit method was better than preissmann implicit method in Free-surface-pressurized flow calculation.