Multirate Time Integration for Compressible Atmospheric Flow Wissenschaftlicher Artikel uri icon

Open Access

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Peer Reviewed

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Abstract

  • We generalise split-explicit Runge-Kutta methods utilised in atmospheric dynamics simulation where fast subprocesses (sound waves) are integrated by small time steps. The inclusion of fixed tendencies of previous stages leads to an improvement of the stability barrier for the acoustics equation by a factor of two. Order and stability analysis is based on the assumption of exact integration of fast subprocesses.

Veröffentlichungszeitpunkt

  • Januar 1, 2008