CFDによる単独翼まわりの流れと計算精度の検討

• 鈴木 正己

  東京大学　大学院　工学系研究科

書誌事項

タイトル別名

• Investigation into Accuracy of CFD for Flow around Isolated Airfoil
• CFD ニ ヨル タンドク ヨクマワリ ノ ナガレ ト ケイサン セイド ノ ケントウ

抄録

Evaluation of calculation accuracy is always needed when performing numerical computation. For this reason, the accuracy will be estimated by comparison with an analytical solution or experimental results. In CFD, the Navier-Stokes equation can be solved by the finite difference methods. However, it is difficult to investigate the reliability and accuracy of the calculation results, since general flows do not have an analytical solution. Moreover many guidelines exist from experience simulation about the computational domain size and other parameters. This research provides guidelines that can be used as these standards for the flow around an airfoil. First, a result calculated by a singularity method of distributing vortex sheet on an airfoil surface and a finite difference method are compared with an exact solution solved by the conformal mapping method about a potential flow, and the accuracies are checked. Finally, dealing with an actual problem of the viscous flow, the limit of the accuracy is grasped by computing the Navier-Stokes equation.

収録刊行物

• ターボ機械

  ターボ機械 34 (6), 366-373, 2006

  一般社団法人 ターボ機械協会

キーワード

• Airfoil
• Computational Fluid Dynamics
• Conformal Mapping
• Potential Flow
• Singularity Method

詳細情報

• CRID: 1390001204544378368
• NII論文ID: 10017570486
• NII書誌ID: AN00004836
• DOI: 10.11458/tsj.34.366
• ISSN: 18802338
• ISSN: 03858839
• NDL書誌ID: 7973604
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I7973604
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • CiNii Articles
  • KAKEN
• 抄録ライセンスフラグ: 使用不可