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.
|出版ステータス||Published - 2018|
|イベント||10th International Conference on Computational Fluid Dynamics, ICCFD 2018 - Barcelona, Spain|
継続期間: 2018 7 9 → 2018 7 13
|Conference||10th International Conference on Computational Fluid Dynamics, ICCFD 2018|
|Period||18/7/9 → 18/7/13|
ASJC Scopus subject areas
- Fluid Flow and Transfer Processes