摘要
本文以混合有限分析4点隐格式为例,分析了这一格式的数值耗散及数值频散.得出该格式的数值耗散为二阶,数值频散为三阶.分析了网格雷诺数R_h,Courant数对该格式数值耗散及数值频散的影响,对于正确使用这一格式有参考意义.
The numerical dissipation and dispersion of Hybrid Finite Analytic Method are investigated by using four-point implicit scheme of HFAM.It is found that the numerical dissipation is second order and the numerical dispersion is third order.The effects of the Cell-Reynolds number and Courant number on the numerical dissipation and dispersion are also investigated.The results of the investigation are significant for using the scheme correctly.
出处
《水利学报》
EI
CSCD
北大核心
1992年第10期26-31,共6页
Journal of Hydraulic Engineering
基金
水利水电科学基金
