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Reduced dissipation AUSM-family fluxes: HR-SLAU2 and HR-AUSM(exp +)-up for high resolution unsteady flow simulations
https://jaxa.repo.nii.ac.jp/records/22729
https://jaxa.repo.nii.ac.jp/records/22729a311517a-ddea-4475-8996-4c56a72cca47
Item type | 学術雑誌論文 / Journal Article(1) | |||||
---|---|---|---|---|---|---|
公開日 | 2016-07-06 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Reduced dissipation AUSM-family fluxes: HR-SLAU2 and HR-AUSM(exp +)-up for high resolution unsteady flow simulations | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Reduced dissipation | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | SLAU2 | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | AUSM(exp +)-up | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Euler fluxes | |||||
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 |
北村, 圭一
× 北村, 圭一× 橋本, 敦× Kitamura, Keiichi× Hashimoto, Atsushi |
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著者所属 | ||||||
横浜国立大学 | ||||||
著者所属 | ||||||
宇宙航空研究開発機構(JAXA) | ||||||
著者所属(英) | ||||||
en | ||||||
Yokohama National University | ||||||
著者所属(英) | ||||||
en | ||||||
Japan Aerospace Exploration Agency (JAXA) | ||||||
出版者(英) | ||||||
出版者 | Elsevier | |||||
書誌情報 |
en : Computers & Fluids 巻 126, p. 41-57, 発行日 2016-03-01 |
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抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | The reduced dissipation approach is applied to AUSM-family flux functions of SLAU2 (as well as its predecessor, SLAU) and AUSM(+)-up for high resolution simulations. In this approach, a dominant dissipation term (of the pressure flux) in each flux function is locally controlled (0 < γHR < 1, γHR: dissipation coefficient) if a cell geometry is of high quality (i.e., fully or nearly rectangular) and flow is smooth, and the original method is recovered otherwise (γHR = 1). Numerical tests demonstrate that the proposed HR (High-Resolution, or Hi-Res) -SLAU2 achieves better resolution (while maintaining robustness) for a wide-ranging Mach numbers (from Mach 6 × 10(exp -4) to 8.1), compared with the original counterparts (γHR = 1) or an existing method (HR-Roe), whereas HR-AUSM(+)-up shows degraded resolution due to a large cutoff Mach number at low speeds and insufficient dissipation at super- and hypersonic speeds, although a smaller γHR is allowed. Furthermore, a new wiggle detector is proposed to improve both convergence and solution accuracy. | |||||
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 | 0045-7930 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA00613559 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | http://dx.doi.org/10.1016/j.compfluid.2015.11.014 | |||||
関連名称 | info:doi/10.1016/j.compfluid.2015.11.014 | |||||
資料番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 資料番号: PA1620033000 |