一様せん断流中の回転運動を伴う固体球に働く流体力の評価

• 黒瀬 良一

• 小森 悟

書誌事項

タイトル別名

• Numerical Study for Estimating Fluid Forces Acting on a Rotating Sphere in a Homogeneous Shear Flow.
• イチヨウ センダンリュウチュウ ノ カイテン ウンドウ オ トモナウ コタイキ

抄録

Fluid forces (drag and lift force) acting on a rotating sphere in a homogeneous linear shear flow are numeriacally studied by means of a three-dimensional numerical simulation based on a marker and cell (MAC) method. The effects of particle rotation speed, shear rate of fluid and particle Reynolds number Re con the fluid forces are estimated under various conditions from numerical predictions of drag and lift force. The results show that average lift force acts on a stationary sphere from the high-speed side to the low-speed side in a homogeneous linear shear flow with high particle Reynolds number of Re>100. The direction of the lift force is quite different between low and high particle Reynolds numbers. The difference can be explained in terms of the pressure acting on the surface of a sphere. The direction of the lift force for high particle Reynolds numbers is also examined through a preliminary. experiment in glycerin solution flow with a linear shear.

収録刊行物

• 日本機械学会論文集Ｂ編

  日本機械学会論文集Ｂ編 62 (599), 2550-2557, 1996

  一般社団法人 日本機械学会

キーワード

• Numerical Simulation

詳細情報

• CRID: 1390001205894814464
• NII論文ID: 110002394968
• NII論文ID: 130004079797
• NII書誌ID: AN00187441
• DOI: 10.1299/kikaib.62.2550
• ISSN: 18848346
• ISSN: 03875016
• NDL書誌ID: 4003042
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4003042
• Web Site: http://www.jstage.jst.go.jp/article/kikaib1979/62/599/62_599_2550/_pdf
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可