根据莱思德兹(Leendertse)定义的两个收敛准则因子R_1、R_2,针对一维圣·维南方程组,从理论上对“T形”隐格式的收敛性问题进行了讨论,基本上完整了“T形”隐格式的理论研究,并与目前国内外常用的四点偏心Preissmann格式进行了比较,所得结果可供实际应用参考。 According to two convergence criterion factors R_1 and R_2 defined by Leendertse, the convergence problem of T-shaped implicit scheme is discussed theoretically for the one-dimensional Shengweinan equations and is basically complete The “T-shaped” implicit format of the theoretical study, and with the current domestic and international four-point eccentric Preissmann format were compared, the results available for practical reference.