摘要
本文用插值元法对任意边界的河道流场采用非矩形网格剖分,然后进行交替方向隐式求解,可以使用C_r数较大的时间步长。在对边界条件进行适当处理后,用正规网格替代了交替网格。并将此方法用于几个问题的数值求解,实践证明本方法是成功的。
Using the interpolation element method to divide the flow-velocity field of natural river on arbitrary boundary into irrectangular nets and solving the equations in mathematics with the alternating direction implicit method, a time step with a larger C, number may be adopted. When boundary conditions are properly treated, normal nets can be used instead of crisscross nets. The scheme was used to calculate the numerical solution of several projects successfully.
出处
《长江科学院院报》
CSCD
北大核心
1991年第1期36-43,62,共9页
Journal of Changjiang River Scientific Research Institute
关键词
三峡工程
非恒定流
数值模型
interpolation element method
alternating direction implicit method
unsteady flow
ir-rectangular net
