Stability of split-form flux-reconstruction schemes for airfoil flow simulation with high-order mesh

T. Watanabe, Y. Abe, T. Haga, R. Takaki, A. Oyama, T. Nonomura, K. Miyaji

Research output: Contribution to conferencePaperpeer-review

Abstract

This paper discusses numerical stability of the split-form FR scheme for a practical flow simulation involving wall boundary condition and high-order curved mesh, i.e., laminar flow simulation of the NACA0012 airfoil. Numerical stability of FR schemes in divergence form and FR schemes in split form is compared by investigating the allowable maximum time step width. The results show that the computation using the split-form FR schemes is stable whereas the computation using the divergence-form FR schemes blow up in the most conditions. This study also shows that the FR scheme in divergence form with the eighth-order solution approximation on a GP4 mesh works well for a practical flow simulation.

Original languageEnglish
Publication statusPublished - 2018
Event10th International Conference on Computational Fluid Dynamics, ICCFD 2018 - Barcelona, Spain
Duration: 2018 Jul 92018 Jul 13

Conference

Conference10th International Conference on Computational Fluid Dynamics, ICCFD 2018
CountrySpain
CityBarcelona
Period18/7/918/7/13

Keywords

  • Flux Reconstruction Scheme
  • High-Order Scheme
  • Numerical Stability

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes

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