Energy Plus Maximum Bound Preserving Runge–Kutta Methods for the Allen–Cahn Equation

Zhaohui Fu, Tao Tang, Jiang Yang*

*Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

3 Citations (Scopus)

Abstract

It is difficult to design high order numerical schemes which could preserve both the maximum bound property (MBP) and energy dissipation law for certain phase field equations. Strong stability preserving (SSP) Runge–Kutta methods have been developed for numerical solution of hyperbolic partial differential equations in the past few decades, where strong stability means the non-increasing of the maximum bound of the underlying solutions. However, existing framework of SSP RK methods can not handle nonlinear stabilities like energy dissipation law. The aim of this work is to extend this SSP theory to deal with the nonlinear phase field equation of the Allen–Cahn type which typically satisfies both maximum bound preserving (MBP) and energy dissipation law. More precisely, for Runge–Kutta time discretizations, we first derive a general necessary and sufficient condition under which MBP is satisfied; and we further provide a necessary condition under which the MBP scheme satisfies energy dissipation.

Original languageEnglish
Article number97
Number of pages17
JournalJournal of Scientific Computing
Volume92
Issue number3
Early online date1 Aug 2022
DOIs
Publication statusPublished - Sept 2022

Scopus Subject Areas

  • Theoretical Computer Science
  • Software
  • Numerical Analysis
  • Engineering(all)
  • Computational Mathematics
  • Computational Theory and Mathematics
  • Applied Mathematics

User-Defined Keywords

  • Allen–Cahn equation
  • Energy dissipation law
  • Maximum principle
  • Runge–Kutta methods

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