This paper deals with the construction of a family of fourth order, energy consistent, explicit time discretizations for dissipative linear wave equations. The schemes are obtained by replacing the inversion of a matrix, that comes naturally after using the technique of the Modified Equation on the second order Leap Frog scheme applied to dissipative linear wave equations, by explicit approximations of its inverse. The stability of the schemes are studied using an energy analysis and a convergence analysis is carried out. Numerical results in 1D illustrate the space/time convergence properties of the schemes and their efficiency is compared to more classical time discretizations.
Mots-clés : Dissipative linear wave equation, high order time discretisation, energy analysis
@article{M2AN_2020__54_3_845_0, author = {Chabassier, Juliette and Diaz, Julien and Imperiale, S\'ebastien}, title = {Construction and analysis of fourth order, energy consistent, family of explicit time discretizations for dissipative linear wave equations}, journal = {ESAIM: Mathematical Modelling and Numerical Analysis }, pages = {845--878}, publisher = {EDP-Sciences}, volume = {54}, number = {3}, year = {2020}, doi = {10.1051/m2an/2019079}, mrnumber = {4080784}, zbl = {1437.65091}, language = {en}, url = {http://www.numdam.org/articles/10.1051/m2an/2019079/} }
TY - JOUR AU - Chabassier, Juliette AU - Diaz, Julien AU - Imperiale, Sébastien TI - Construction and analysis of fourth order, energy consistent, family of explicit time discretizations for dissipative linear wave equations JO - ESAIM: Mathematical Modelling and Numerical Analysis PY - 2020 SP - 845 EP - 878 VL - 54 IS - 3 PB - EDP-Sciences UR - http://www.numdam.org/articles/10.1051/m2an/2019079/ DO - 10.1051/m2an/2019079 LA - en ID - M2AN_2020__54_3_845_0 ER -
%0 Journal Article %A Chabassier, Juliette %A Diaz, Julien %A Imperiale, Sébastien %T Construction and analysis of fourth order, energy consistent, family of explicit time discretizations for dissipative linear wave equations %J ESAIM: Mathematical Modelling and Numerical Analysis %D 2020 %P 845-878 %V 54 %N 3 %I EDP-Sciences %U http://www.numdam.org/articles/10.1051/m2an/2019079/ %R 10.1051/m2an/2019079 %G en %F M2AN_2020__54_3_845_0
Chabassier, Juliette; Diaz, Julien; Imperiale, Sébastien. Construction and analysis of fourth order, energy consistent, family of explicit time discretizations for dissipative linear wave equations. ESAIM: Mathematical Modelling and Numerical Analysis , Tome 54 (2020) no. 3, pp. 845-878. doi : 10.1051/m2an/2019079. http://www.numdam.org/articles/10.1051/m2an/2019079/
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