Asymptotic analysis of the RS-IMEX scheme for the shallow water equations in one space dimension
Asymptotic analysis of the RS-IMEX scheme for the shallow water equations in one space dimension
复制标题
一维浅水方程RS-IMEX格式的渐近分析
DOI:
10.1051/m2an/2019005
复制
发表时间:
2019
期刊:
影响因子:
--
通讯作者:
Hamed Zakerzadeh
中科院分区:
文献类型:
--
作者:
Hamed Zakerzadeh
We introduce and analyse the so-called Reference Solution IMplicit-EXplicit scheme as a flux-splitting method for singularly-perturbed systems of balance laws. RS-IMEX scheme’s bottom-line is to use the Taylor expansion of the flux function and the source term around a reference solution (typically the asymptotic limit or an equilibrium solution) to decompose the flux and the source into stiff and non-stiff parts so that the resulting IMEX scheme is Asymptotic Preserving (AP) w.r.t. the singular parameter tending to zero. We prove the asymptotic consistency, asymptotic stability, solvability and well-balancing of the scheme for the case of the one-dimensional shallow water equations when the singular parameter is the Froude number. We will also study several test cases to illustrate the quality of the computed solutions and to confirm the analysis.
影响因子:
2.1
作者:
J. Giesselmann
通讯作者:
J. Giesselmann
影响因子:
3.7
作者:
Georgij Bispen;K. R. Arun;M. Lukáčová-Medvid’ová;Sebastian Noelle
通讯作者:
Georgij Bispen;K. R. Arun;M. Lukáčová-Medvid’ová;Sebastian Noelle
DOI:
10.1016/j.jcp.2017.01.020
发表时间:
2017-04
期刊:
J. Comput. Phys.
影响因子:
--
作者:
Georgij Bispen;M. Lukáčová-Medvid’ová;L. Yelash
通讯作者:
Georgij Bispen;M. Lukáčová-Medvid’ová;L. Yelash