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Optimization of Parameter Values in the Turbulence Model Aided by Data Assimilation
https://jaxa.repo.nii.ac.jp/records/22711
https://jaxa.repo.nii.ac.jp/records/22711623fc226-662a-4149-9d0b-3bab01a169a0
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2016-07-06 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Optimization of Parameter Values in the Turbulence Model Aided by Data Assimilation | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
加藤, 博司
× 加藤, 博司× 石向, 桂一× 吉澤, 徴× Kato, Hiroshi× Ishiko, Keiichi× Yoshizawa, Akira |
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著者所属 | ||||||
宇宙航空研究開発機構(JAXA) | ||||||
著者所属 | ||||||
宇宙航空研究開発機構(JAXA) | ||||||
著者所属 | ||||||
宇宙航空研究開発機構(JAXA) | ||||||
著者所属(英) | ||||||
en | ||||||
Japan Aerospace Exploration Agency (JAXA) | ||||||
著者所属(英) | ||||||
en | ||||||
Japan Aerospace Exploration Agency (JAXA) | ||||||
著者所属(英) | ||||||
en | ||||||
Japan Aerospace Exploration Agency (JAXA) | ||||||
出版者(英) | ||||||
出版者 | American Institute of Aeronautics and Astronautics (AIAA) | |||||
書誌情報 |
en : AIAA Journal 巻 54, 号 5, p. 1512-1523, 発行日 2016-03-29 |
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抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | This study proposes a data assimilation methodology for estimating the optimal parameter values of turbulence models. The proposed methodology was applied to the estimation of the parameter a(sub 1) in the modified Menter k-ω shear-stress transport turbulence model. For this purpose, a fundamental turbulent flow, namely, the flow over a two-dimensional backward-facing step, was employed. The estimated value of a(sub 1) (1.0) differed from its original value (i.e., 0.31). The modified Menter k-ω shear-stress transport turbulence model with a(sub 1) = 1.0 was validated on several turbulent flow calculations; flows over a two-dimensional backward-facing step and a two-dimensional flat-plate boundary layer, two-dimensional transonic flows around the RAE 2822 airfoil, and three-dimensional transonic flows around the ONERA M6 wing. In simulations, the modified Menter k-ω shear-stress transport turbulence model with a(sub 1) = 1.0 better modeled the separated and adverse pressure gradient flows than the original modified Menter k-ω shear-stress transport turbulence model with a(sub 1) = 0.31. Furthermore, in the absence of separation and adverse pressure gradient flows, the proposed and original modified Menter k-ω shear-stress transport turbulence models computed almost the same results. These observations suggest that the proposed data assimilation methodology effectively estimates the optimal parameter values of turbulence models and that the estimated a(sub 1) (1.0) improves the performance of the modified Menter k-ω shear-stress transport turbulence model over the original value (i.e., 0.31). | |||||
内容記述 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 形態: カラー図版あり | |||||
内容記述(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Physical characteristics: Original contains color illustrations | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0001-1452 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA00502751 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | http://dx.doi.org/10.2514/1.J054109 | |||||
関連名称 | info:doi/10.2514/1.J054109 | |||||
資料番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 資料番号: PA1620004000 |