Adaptive Time Steps for Compressible Flows Based on Dual-Time Stepping and a RK/Implicit Smoother

O. Peles, E. Turkel*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

We present an adaptive time stepping technique, based on a dual-time stepping scheme together with a RK/implicit smoother for physical time marching. This method is found to be very efficient for transient problem characterized by a large variations of time scales during the physical time and hence a wide range of required physical time steps. We discuss the method and present several examples of compressible flow problems.

Original languageEnglish
Pages (from-to)1409-1428
Number of pages20
JournalJournal of Scientific Computing
Volume81
Issue number3
DOIs
StatePublished - 1 Dec 2019

Keywords

  • Acceleration
  • Adaptive time steps
  • DIRK
  • Dual time stepping
  • Navier–Stokes

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