見せてもらおうか，SGS モデルの性能とやらを

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  • Let’s See What the SGS Model Can Do

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第54回流体力学講演会/第40回航空宇宙数値シミュレーション技術シンポジウム (2022年6月29日-7月1日. いわて県民情報交流センター(アイーナ)), 盛岡市, 岩手

The 54th Fluid Dynamics Conference / the 40th Aerospace Numerical Simulation Symposium (June 29 - July 1, 2022. Iwate Citizen Information Exchange Center (Aiina)), Morioka, Iwate, Japan

The spatial filtering of LES is indirectly controlled by the grid width, numerical dissipation, and SGS model. To understand how each of these factors affects the quality of LES results, it is necessary to evaluate them separately. In our previous study, we evaluated the effect of numerical dissipation on ILES using upwind biased interpolation. The effect of SGS model was also briefly investigated, but the contribution of numerical dissipation was not clearly separated from that of SGS model. In this study, we would like to evaluate how the SGS model works by itself without the effect of numerical dissipation by minimizing truncation error by introducing central differencing interpolation.

形態: カラー図版あり

Physical characteristics: Original contains color illustrations

資料番号: AA2230023031

レポート番号: JAXA-SP-22-007

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