The finite element method explicit scheme for a solution of one problem of surface and ground water combined movement

11th International Conference on "Mesh methods for boundary-value problems and applications"

Glazyrina, L.L.^1 ; Pavlova, M.F.^1

Kazan Federal University, 18 Kremlyovskaya str., Kazan

420008, Russia^1

关键词: Explicit difference schemes;    Explicit scheme;    Initial-boundary value problems;    Semi-discretization method;    Surface and ground waters;    Time variable;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/158/1/012041/pdf
DOI  :  10.1088/1757-899X/158/1/012041

来源: IOP

【 摘 要 】

We investigate the initial-boundary value problem for the system of two nonlinear degenerate parabolic combined equations, when the one of equations is set in the domain we consider, and the second is set on the conducted section of this domain. With help of the semidiscretization methods with respect to time variable and finite element method (FEM) with respect to space variable we construct an explicit difference scheme. We obtained conditions which provide us convergence of constructed method. The result of convergence was obtained with the minimum conditions for smoothness of the initial data.