Computation Transport Phenomena in Chemical Engineering. Self-Sustained Oscillatory Flow and Fluid Mixing in Grooved Channels.

• Nishimura Tatsuo

  Department of Mechanical Engineering, Yamaguchi University

• Kunitsugu Koji

  Department of Mechanical Engineering, Yamaguchi University

Bibliographic Information

Other Title

• 流れの数値解析と化学装置のモデリング　　くぼみ付き流路内の自律振動と流体混合
• クボミ ツキ リュウロナイ ノ ジリツ シンドウ ト リュウタイ コンゴウ

Abstract

We examine numerically and experimentally self-sustained oscillation and fluid mixing in grooved channels with different groove lengths. The critical Reynolds number for the onset of self-sustained oscillation decreases as the groove length becomes larger, but oscillatory flow is found to arise from the same Tollmien-Schlichting waves triggered by a shear layer above the groove. Momentum transfer due to the oscillating parts of the flow is analyzed by looking at the oscillatory stress and the production of oscillatory energy. Fluid mixing processes between the channel and groove flows are also explained by a particle advection procedure. The agreement between numerical and experimental results is satisfactory.

Journal

• KAGAKU KOGAKU RONBUNSHU

  KAGAKU KOGAKU RONBUNSHU 23 (6), 764-771, 1997

  The Society of Chemical Engineers, Japan

Keywords

• Fluid Mechanics
• Grooved Channel
• Self-Sustained Oscillation
• Fluid Mixing
• Numerical Simulation
• Flow Visualization

Details

• CRID: 1390282679485329024
• NII Article ID: 10002768170
• NII Book ID: AN00037234
• DOI: 10.1252/kakoronbunshu.23.764
• ISSN: 13499203
• ISSN: 0386216X
• NDL BIB ID: 4334847
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4334847
• Web Site: http://www.jstage.jst.go.jp/article/kakoronbunshu1975/23/6/23_6_764/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed