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Pointwise turbulence modeling for engineering applications
https://jaxa.repo.nii.ac.jp/records/5739
https://jaxa.repo.nii.ac.jp/records/5739ceced695-a2c0-4c3b-a17b-7bf8372df24c
名前 / ファイル | ライセンス | アクション |
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63609008.pdf (3.9 MB)
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Item type | 会議発表論文 / Conference Paper(1) | |||||
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公開日 | 2015-03-26 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Pointwise turbulence modeling for engineering applications | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 超音速機 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 航空機設計 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 乱流モデル | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 計算流体力学 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 粘性抗力 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | レイノルズ数 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 乱流 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 遷移流 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | ナビエ・ストークス方程式 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 表面摩擦 | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | supersonic aircraft | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | aircraft design | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | turbulence model | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | computational fluid dynamics | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | viscous drag | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Reynolds number | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | turbulent flow | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | transition flow | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Navier-Stokes equation | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | skin friction | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_5794 | |||||
資源タイプ | conference paper | |||||
著者 |
Goldberg, U.
× Goldberg, U. |
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著者所属 | ||||||
Metacomp Technologies Inc. | ||||||
著者所属(英) | ||||||
en | ||||||
Metacomp Technologies Inc. | ||||||
出版者 | ||||||
出版者 | 宇宙航空研究開発機構 | |||||
出版者(英) | ||||||
出版者 | Japan Aerospace Exploration Agency (JAXA) | |||||
書誌情報 |
宇宙航空研究開発機構特別資料 en : JAXA Special Publication: Proceedings of International Workshops on Numerical Simulation Technology for Design of Next Generation Supersonic Civil Transport (SST-CFD Workshop) 巻 JAXA-SP-06-029E, p. 49-60, 発行日 2007-03-30 |
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会議概要(会議名, 開催地, 会期, 主催者等) | ||||||
内容記述タイプ | Other | |||||
内容記述 | SST-CFD Workshop. International CFD Workshops for Super-sonic Transport Design 航空宇宙技術研究所 19980316-19980317 東京 日本 | |||||
会議概要(会議名, 開催地, 会期, 主催者等)(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | SST-CFD Workshop. International CFD Workshops for Super-sonic Transport Design National Aerospace Laboratory 19980316-19980317 Tokyo Japan | |||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Most current turbulence models involve explicit wall distance in their formulation. However, wall distance is ambiguous in all but the simplest topologies. Besides, it is not at all evident that it bears a relationship to the structure of turbulence. Thus it is desirable to base modeling practice on wall proximity indicators which are local (pointwise) in nature and convey the influence of walls indirectly, based on parameters that 'measure' this proximity. Examples are the turbulence Reynolds number, k(exp 2)/(nu x epsilon), and various dot products of gradients such as (delta tau/delta x(sub j))(delta k/delta x(sub j)) where tau = k/epsilon, the turbulence time scale. Adhering to this modeling practice retains full generality of the model, since the entire formulation is local. Thus wall-distance-free models are tensorially invariant and frame-indifferent, applicable to arbitrary topologies and moving boundaries. They are also usable in conjunction with solvers based on either unstructured or structured book-keeping, executed on any computer architecture, including massively parallel processors. This paper illustrates the pointwise approach to turbulence modeling by introducing several such models of both linear and nonlinear types, and by demonstrating their performance in 2D and 3D flow eases. | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1349-113X | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA11984031 | |||||
資料番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 資料番号: AA0063609008 | |||||
レポート番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | レポート番号: JAXA-SP-06-029E |