2002年
Numerical prediction of free surface flows with QSI scheme on collocated grid system
ADVANCES IN HYDRAULICS AND WATER ENGINEERING, VOLS 1 AND 2, PROCEEDINGS
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- 開始ページ
- 322
- 終了ページ
- 326
- 記述言語
- 英語
- 掲載種別
- 記事・総説・解説・論説等(国際会議プロシーディングズ)
- 出版者・発行元
- WORLD SCIENTIFIC PUBL CO PTE LTD
In this study, a computational method has been proposed for free surface flows taking account of the treatment of the deforming free-surface shapes and the numerical accuracy for the internal flows. In this paper, the free-surface profiles are represented by curvilinear coordinates generated on the basis of the ALE formulation. The governing equations axe discretized on the collocated grid system. The velocity-pressure correction is performed with C-HSMAC method, which is effective to preserve fluid mass during the unsteady computation with free-surface deformation. In addition, a QSI (quintic spline interpolation) scheme is applied to convection terms to improve the numerical accuracy for internal flows. The free oscillation with small amplitude and non-linear waves were solved with the present method. As a result, it has been shown that the proposed scheme and numerical algorithm have sufficient numerical accuracy and that they are effective to predict free-surface flows.
- リンク情報
- ID情報
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- Web of Science ID : WOS:000180463100057