Efficient large-scale forcing in finite-difference simulations of steady isotropic turbulence

Ryo Onishi, Yuya Baba, Keiko Takahashi

Research output: Contribution to conferencePaperpeer-review

Abstract

This study proposes a new forcing scheme suitable for massively-parallel finite-difference simulations of steady isotropic turbulence. The proposed forcing scheme, named reduced-communication forcing (RCF), is based on the idea of the conventional large-scale forcing, but requires much less data communication, leading to a high parallel efficiency. It has been confirmed that the RCF works intrinsically in the same manner as the conventional large-scale forcing. Comparisons have revealed that the fourth-order finite-difference model run in combination with the RCF (FDM-RCF) is as good as the spectral model, while requiring less computational costs.

Original languageEnglish
Publication statusPublished - 2010
Externally publishedYes
Event3rd Chaotic Modeling and Simulation International Conference, CHAOS 2010 - Chania, Crete, Greece
Duration: 2010 Jun 12010 Jun 4

Conference

Conference3rd Chaotic Modeling and Simulation International Conference, CHAOS 2010
CountryGreece
CityChania, Crete
Period10/6/110/6/4

Keywords

  • Finite-difference simulation
  • High-performance computing
  • Intermittency
  • Steady isotropic turbulence

ASJC Scopus subject areas

  • Modelling and Simulation

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