境界層干渉を伴う非定常衝撃波伝播に対する高効率計算手法の開発 A New Numerical Method for Unsteady Shock Wave Propagation with Boundary Layer Interaction

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抄録

A new numerical method using a hybrid (explicit/implicit) scheme with the matrix-free Lower-Upper Symmetric Gauss-Sidel (LU-SGS) method has been developed to compute unsteady viscous flows on highly stiff grids, where the ratio of the maximal to the minimal cell spacing is large. A dual-time stepping method is used to reduce unsteady residuals. Results show that the present method has advantage over conventional explicit and implicit schemes. The CPU time has been reduced by 69% and 57% compared with the 2nd-order explicit scheme and the full implicit scheme, respectively, in the case of a rather low Reynolds number flow. On the other hand, at a practical Reynolds number of 5.54×10<SUP>7</SUP>, the CPU time becomes about 30 times shorter than that of the explicit scheme.

収録刊行物

  • 日本航空宇宙学会論文集 = Journal of the Japan Society for Aeronautical and Space Sciences

    日本航空宇宙学会論文集 = Journal of the Japan Society for Aeronautical and Space Sciences 52(604), 196-202, 2004-05-05

    一般社団法人 日本航空宇宙学会

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各種コード

  • NII論文ID(NAID)
    10012934598
  • NII書誌ID(NCID)
    AA11307372
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    13446460
  • NDL 記事登録ID
    6965447
  • NDL 雑誌分類
    ZN25(科学技術--運輸工学--航空機・ロケット)
  • NDL 請求記号
    Z74-B503
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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