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通过数值求解二维浅水方程组，模拟三峡工程大江截流过程中的流场，可快速获得任一口门宽度下的全域流场信息，计算结果合理，可为截流方案和施工决策提供依据．
By solving two-dimensional shallow water equations numerically and simulating the flow field during the closure of the Three Gorges Project, the global flow field information at any gate width can be quickly obtained. The calculation results are reasonable, which can provide the basis for the closure plan and construction decision.