Imp1icit Factored Methodによる二次元非圧縮Navier-Stokes方程式の計算

Material type: 規格・テクニカルリポート類

Author: 児玉, 良明ほか

Publisher: 航空宇宙技術研究所

Publication date: 1984-11

Material Format: Digital

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Note (General)：: 出版タイプ： NAAn implicit factored scheme was used for solving the two-dimensional incompressible Navier-Stokes equations. Pseudo compressibility was intro...

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Material Type: 規格・テクニカルリポート類
Title: Imp1icit Factored Methodによる二次元非圧縮Navier-Stokes方程式の計算
Author/Editor: 児玉, 良明
Kodama, Yoshiaki
Author Heading: Kodama, Yoshiaki
Publication, Distribution, etc.: 航空宇宙技術研究所
Publication Date: 1984-11
Publication Date (W3CDTF): 1984
Alternative Title: Computation of the Two-Dimensional Incompressible Navier-Stokes Equations Using an Implicit Factored Method
Periodical title: 航空宇宙技術研究所特別資料 = Special Publication of National Aerospace Laboratory SP-3
No. or year of volume/issue: 3
Volume: 3
Pages: 77-84
ISSN (Periodical Title): ISSN : 0289-260X
Target Audience: 一般
Note (General): 出版タイプ： NA
An implicit factored scheme was used for solving the two-dimensional incompressible Navier-Stokes equations. Pseudo compressibility was introduced in the continuity equation. The non-conservation from was chosen for stability. Von Neumann stability analysis with a model scalar equation showed that the present scheme remains stable under arbitrary coordinate transformations, without adding any numerical dissipation term. Calculation was made for a backward-facing step flow with the Reynolds number Re= Upeak H /nu= 58, where H is a step height. Convergence was obtained after about 300 iterations, using a non-dimensional time step DELTAt = 1.0. The calculated results show a reasonable tendency, except that small oscillations appear in the pressure distribution near the corner point. This phenomenon needs to be further investigated.
1.0. The calculated results show a reasonable tendency, except that small oscillations appear in the pressure distribution near the corner point. This phenomenon needs to be further investigated.
資料番号: NALSP0003010
レポート番号: NAL SP-3
Periodical Title (NCID): AN10097345
https://ci.nii.ac.jp/ncid/AN10097345
Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）
https://irdb.nii.ac.jp
Original Data Provider (Database): 宇宙航空研究開発機構 : 宇宙航空研究開発機構リポジトリ