NUMERICAL ANALYSIS OF SOLID-GAS AND SOLID-LIQUID TWO PHASE FLOW USING NON-BOUSSINESQ κ-ε TURBULENCE MODEL

• FUKUSHIMA Yusuke

  JAPAN SOCIETY OF CIVIL ENGINEERS

• KAGAMIHARA Masashi

  JAPAN SOCIETY OF CIVIL ENGINEERS

• NOGUCHI Kazuyoshi

  JAPAN SOCIETY OF CIVIL ENGINEERS

Bibliographic Information

Other Title

• 非ブーシネスクκ-ε乱流モデルによる固気・固液二相流の解析
• ヒブーシネスク カッパーイプシロン ランリュウ モデル ニ ヨル コキ コエキ 2ソウリュウ ノ カイセキ

Abstract

The Boussinesq approximation for flow calculation is invalid in the case of snow drift and avalanches, in which the density of snow particles is appreciably larger than that of air. The formulation of κ-ε turbulence model for the solid-fluid two-phase flow considering the density variation is presented. The model is applied to sediment-laden streams. It is shown that the model explains well the experimental data. The model calculations for the snow drift in the cases of the slope angle of 0° and 30°, respectively, are carried out. As the bed concentration of snow particles is larger, the velocity is considerably larger in case of 30°. The Boussinesq approximation is inadequate, when the near bed concentration becomes larger than 0.03% for snow drift.

Journal

• Doboku Gakkai Ronbunshu

  Doboku Gakkai Ronbunshu 1999 (621), 41-52, 1999-05-21

  Japan Society of Civil Engineers

Keywords

• solid-fluid two phase flow
• suspension flow
• non-Boussinesq approximation
• numerical analysis
• κ-ε turbulence model

Details

• CRID: 1390001205309828096
• NII Article ID: 10002529482
• NII Article ID: 130003983267
• NII Book ID: AN10014020
• DOI: 10.2208/jscej.1999.621_41
• ISSN: 18827187
• ISSN: 02897806
• NDL BIB ID: 4747955
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4747955
• Web Site: https://www.jstage.jst.go.jp/article/jscej1984/1999/621/1999_621_41/_pdf
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed