On Richardson extrapolation for low-dissipation low-dispersion diagonally implicit Runge–Kutta schemes

التفاصيل البيبلوغرافية
العنوان: On Richardson extrapolation for low-dissipation low-dispersion diagonally implicit Runge–Kutta schemes
المؤلفون: Ágnes Havasi, Ehsan Kazemi
المصدر: Journal of Computational Physics. 358:21-35
بيانات النشر: Elsevier BV, 2018.
سنة النشر: 2018
مصطلحات موضوعية: Numerical Analysis, Physics and Astronomy (miscellaneous), Wave propagation, Applied Mathematics, Extrapolation, Order of accuracy, Richardson extrapolation, 010103 numerical & computational mathematics, Dissipation, 01 natural sciences, Computer Science Applications, Euler equations, 010101 applied mathematics, Computational Mathematics, Runge–Kutta methods, Nonlinear system, symbols.namesake, Modeling and Simulation, symbols, Applied mathematics, 0101 mathematics, Mathematics
الوصف: In the modeling of wave propagation phenomena it is necessary to use time integration methods which are not only sufficiently accurate, but also properly describe the amplitude and phase of the propagating waves. It is not clear if amending the developed schemes by extrapolation methods to obtain a high order of accuracy preserves the qualitative properties of these schemes in the perspective of dissipation, dispersion and stability analysis. It is illustrated that the combination of various optimized schemes with Richardson extrapolation is not optimal for minimal dissipation and dispersion errors. Optimized third-order and fourth-order methods are obtained, and it is shown that the proposed methods combined with Richardson extrapolation result in fourth and fifth orders of accuracy correspondingly, while preserving optimality and stability. The numerical applications include the linear wave equation, a stiff system of reaction–diffusion equations and the nonlinear Euler equations with oscillatory initial conditions. It is demonstrated that the extrapolated third-order scheme outperforms the recently developed fourth-order diagonally implicit Runge–Kutta scheme in terms of accuracy and stability.
تدمد: 0021-9991
DOI: 10.1016/j.jcp.2017.12.043
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::48f49378db3a8ac5ab6f0639ff0a783d
https://doi.org/10.1016/j.jcp.2017.12.043
Rights: CLOSED
رقم الانضمام: edsair.doi...........48f49378db3a8ac5ab6f0639ff0a783d
قاعدة البيانات: OpenAIRE
الوصف
تدمد:00219991
DOI:10.1016/j.jcp.2017.12.043