2006年
コロケート格子上の非圧縮性流体計算法に基づく浅水流方程式の数値解法
水工学論文集 (CDROM)
- ,
- ,
- ,
- 巻
- 50
- 号
- 開始ページ
- 775
- 終了ページ
- 780
- 記述言語
- 日本語
- 掲載種別
- DOI
- 10.2208/prohe.50.775
- 出版者・発行元
- Japan Society of Civil Engineers
This paper presents a computational method for shallow water equations on the basis of the prediction method proposed for incompressible Navier-Stokes equations on a collocated grid system. In the proposed method, the momentum equations are discretized with a semi-implicit method with respect to the water depth, h. The continuity equation is discretized implicitly and its numerical solutions are obtained by solving simultaneous equations. The unit flow rates, M and N, are corrected with the converged results for h. It has been shown that the proposed method is numerically stable and that higher-order schemes for convection terms, C-HSMAC and C-ISMAC methods, which have been proposed for the computations of incompressible flows, are available for shallow water equations as well.
- リンク情報
- ID情報
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- DOI : 10.2208/prohe.50.775
- ISSN : 0916-7374
- CiNii Articles ID : 130003842325