Numerical Analysis of the Flow around Sphere Moving through a Circular Pipe.

• NISHIKAWA Nobuhide

  千葉大学工学部機械工学科

• TSUTAKI Shigeo

  千葉大学大学院工学研究科 現: 石川島播磨重工業

• MIKAMI Fumihiko

  千葉大学工学部機械工学科

Bibliographic Information

Other Title

• 管内移動球まわりの流れの数値解析
• カンナイ イドウキュウ マワリ ノ ナガレ ノ スウチ カイセキ

Abstract

The flow around a sphere rising in a cylindrical pipe is numerically analyzed upon the axisymmetricity assumption. The sphere goes upward with constant velocity or with constant accerelation. The spherical coordinate mesh is attached to the sphere, however finite difference solution on the mesh is only auxiliary to a overset mesh method and does not affect on the cylindrical coorinate solution by HSMAC scheme. In the constant accerelation case whether the wall shear has its peak above or below the sphere depends upon whether the sphere velocity become larger than the background velocity or smaller than the latter. The qualitatively good agreement of sphere surface pressure is obtained with the existing experiment in the axisymmetric jet. Such assessment of the method predicts the applicability of the overset mesh method for calculation for the bubble or sedimendation of body in the pipe.

Journal

• Aeronautical and Space Sciences Japan

  Aeronautical and Space Sciences Japan 45 (522), 387-395, 1997

  THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES

Keywords

• Channel Flow
• Unsteady Flows
• Overset Grid

Details

• CRID: 1390282679456164096
• NII Article ID: 10002861790
• NII Article ID: 10008476003
• NII Book ID: AN00189072
• DOI: 10.2322/jjsass1969.45.387
• ISSN: 24241369
• ISSN: 00214663
• NDL BIB ID: 4257409
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4257409
• Web Site: https://www.jstage.jst.go.jp/article/jjsass1969/45/522/45_522_387/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed