Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
On the Accuracy of the Discontinuous Galerkin Method in Calculation of Shock Waves. / Ladonkina, M. E.; Neklyudova, O. A.; Ostapenko, V. V. и др.
в: Computational Mathematics and Mathematical Physics, Том 58, № 8, 01.08.2018, стр. 1344-1353.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
}
TY - JOUR
T1 - On the Accuracy of the Discontinuous Galerkin Method in Calculation of Shock Waves
AU - Ladonkina, M. E.
AU - Neklyudova, O. A.
AU - Ostapenko, V. V.
AU - Tishkin, V. F.
N1 - Publisher Copyright: © 2018, Pleiades Publishing, Ltd.
PY - 2018/8/1
Y1 - 2018/8/1
N2 - Abstract: The accuracy of the discontinuous Galerkin method of the third-order approximation on smooth solutions in the calculation of discontinuous solutions of a quasilinear hyperbolic system of conservation laws with shock waves propagating with a variable velocity is studied. As an example, the approximation of the system of conservation laws of shallow water theory is considered. On the example of this system, it is shown that, like the TVD and WENO schemes of increased order of approximation on smooth solutions, the discontinuous Galerkin method, despite its high accuracy on smooth solutions and in the localization of shock waves, reduces its order of convergence to the first order in the shock wave influence domain.
AB - Abstract: The accuracy of the discontinuous Galerkin method of the third-order approximation on smooth solutions in the calculation of discontinuous solutions of a quasilinear hyperbolic system of conservation laws with shock waves propagating with a variable velocity is studied. As an example, the approximation of the system of conservation laws of shallow water theory is considered. On the example of this system, it is shown that, like the TVD and WENO schemes of increased order of approximation on smooth solutions, the discontinuous Galerkin method, despite its high accuracy on smooth solutions and in the localization of shock waves, reduces its order of convergence to the first order in the shock wave influence domain.
KW - discontinuous Galerkin method
KW - hyperbolic system of conservation laws
KW - integral and local convergence order
KW - shallow water theory
KW - CONVERGENCE
KW - DIFFERENCE-SCHEMES
KW - HYPERBOLIC CONSERVATION-LAWS
UR - http://www.scopus.com/inward/record.url?scp=85053924455&partnerID=8YFLogxK
U2 - 10.1134/S0965542518080122
DO - 10.1134/S0965542518080122
M3 - Article
AN - SCOPUS:85053924455
VL - 58
SP - 1344
EP - 1353
JO - Computational Mathematics and Mathematical Physics
JF - Computational Mathematics and Mathematical Physics
SN - 0965-5425
IS - 8
ER -
ID: 16757911