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Optimal Feedback Force Locations in Measurement-Integrated Simulation for Two-Dimensional Flow Around a Circular Cylinder
http://hdl.handle.net/10458/0002002102
http://hdl.handle.net/10458/0002002102adeb7edc-b757-4413-ba75-9965a8d7654b
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Manuscript (1.5 MB)
Download is available from 2026/12/9.
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This is the pre-peer reviewed version of the following article: K. Hirose and S. Miyauchi, “ Optimal Feedback Force Locations in Measurement-Integrated Simulation for Two-Dimensional Flow Around a Circular Cylinder,” International Journal for Numerical Methods in Fluids (2025): 1–11, which has been published in final form at https://doi.org/10.1002/fld.70045. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.
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| アイテムタイプ | 学術雑誌論文 / Journal Article(1) | |||||||||||||
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| 公開日 | 2025-12-24 | |||||||||||||
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| タイトル | Optimal Feedback Force Locations in Measurement-Integrated Simulation for Two-Dimensional Flow Around a Circular Cylinder | |||||||||||||
| 言語 | en | |||||||||||||
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| 言語 | eng | |||||||||||||
| キーワード | ||||||||||||||
| 言語 | en | |||||||||||||
| キーワード | circular cylinder | |||||||||||||
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| 言語 | en | |||||||||||||
| キーワード | data assimilation | |||||||||||||
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| 言語 | en | |||||||||||||
| キーワード | feedback force | |||||||||||||
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| 言語 | en | |||||||||||||
| キーワード | measurement-integrated simulation | |||||||||||||
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| 言語 | en | |||||||||||||
| キーワード | optimal location | |||||||||||||
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| 言語 | en | |||||||||||||
| キーワード | separation point | |||||||||||||
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| 資源タイプ | journal article | |||||||||||||
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| アクセス権 | open access | |||||||||||||
| 著者 |
Hirose, Kota
× Hirose, Kota
× 宮内, 優
WEKO
35453
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| 内容記述タイプ | Abstract | |||||||||||||
| 内容記述 | Measurement-integrated simulation, one of the data assimilation methods, is a simulation technique that reproduces an actual flow field by adding feedback forces, including measurement data, to the external force term of the Navier–Stokes equations. The analysis in the previous studies using wind tunnels was limited to flows around a square cylinder. There is no principle for determining the optimal location of the feedback force, and the optimal location of feedback forces for other shapes is unknown. This study aimed to identify the optimal location for applying the feedback force in the flow around a circular cylinder and explore its relationship with the flow field. Using pressure on the cylinder surface obtained from a numerical experiment with disturbed inflow containing random fluctuations as measurement data, several measurement-integrated simulations were conducted, each with a different feedback location. By comparing the results of the measurement-integrated simulation with those of the numerical experiment, the optimal position was identified at 120° from the stagnation point that most accurately reproduced the flow behind the cylinder in the numerical experiment. Furthermore, this location was identified as the flow separation point, suggesting that applying a feedback force at the separation point is optimal for reproducing the flow behind the object. | |||||||||||||
| 言語 | en | |||||||||||||
| 書誌情報 |
en : International Journal for Numerical Methods in Fluids 発行日 2025-12-09 |
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| 出版者 | Wiley | |||||||||||||
| 言語 | en | |||||||||||||
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| 収録物識別子タイプ | EISSN | |||||||||||||
| 収録物識別子 | 10970363 | |||||||||||||
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| 収録物識別子タイプ | ISSN | |||||||||||||
| 収録物識別子 | 02712091 | |||||||||||||
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| 関連タイプ | isVersionOf | |||||||||||||
| 識別子タイプ | DOI | |||||||||||||
| 関連識別子 | https://doi.org/10.1002/fld.70045 | |||||||||||||
| 権利 | ||||||||||||||
| 権利情報 | © 2025 John Wiley & Sons Ltd. | |||||||||||||
| 言語 | en | |||||||||||||
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| 出版タイプ | VoR | |||||||||||||
