DEVELOPMENT OF A COMPUTATIONAL METHOD FOR MOVING BOUNDARY FLOWS WITH GAL MODEL AND ITS APPLICATIONS

• NIHEI Yasuo

  JAPAN SOCIETY OF CIVIL ENGINEERS

• NADAOKA Kazuo

  JAPAN SOCIETY OF CIVIL ENGINEERS

Bibliographic Information

Other Title

• GALモデルに基づく移動境界流れ解析法の構築とその応用
• GAL モデル ニ モトヅク イドウ キョウカイ ナガレ カイセキホウ ノ コウチク ト ソノ オウヨウ

Abstract

A computational method for two-phase flow with moving boundary is presented, in which the GAL (Grid-Averaged Lagrangian) model is used to track the moving boundary. To avoid numerical instability due to high density ratio between the phases, the motion of each phase is separately treated. The accuracy of the GAL model is examined for the capture of the moving boundary and the curvature of the interface through computation for simple cases of moving boundary problems. The comparison between the computational results obtained by the GAL model and those by the previous models indicates that the GAL model has relatively higher accuracy. The present method is applied to the computations for broken-dam problems and a falling droplet problem, showing that the present method gives good agreements with the previous experimental and computational results.

Journal

• Doboku Gakkai Ronbunshu

  Doboku Gakkai Ronbunshu 2000 (642), 19-30, 2000-02-21

  Japan Society of Civil Engineers

Keywords

• GAL model
• moving boundary flows
• volume tracking method
• broken-dam problem
• liquid droplet

Details

• CRID: 1390282680285451392
• NII Article ID: 10004541294
• NII Article ID: 10010284867
• NII Book ID: AN10014020
• DOI: 10.2208/jscej.2000.642_19
• ISSN: 18827187
• ISSN: 02897806
• NDL BIB ID: 5292849
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I5292849
• Web Site: https://www.jstage.jst.go.jp/article/jscej1984/2000/642/2000_642_19/_pdf
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed