构造了一维非定常自由面浅水流动的隐式守恒差分格式。
An Implicit conservative scheme for ID unsteady free - surface shallow water flows is presented.
建立了并行计算系统工作站机群，实现了浅水流动的并行数值模拟。
The cluster of workstation for parallel arithmetic is established to carry out the large-scale numerical simulation of shallow water flow.
描述和相关各种物理现象的提出及产生环境：交通流量，浅水流动。
Description and various physical set ups where they occur: traffic flow, shallow water.
考虑这个分量以后，压力不再符合静水压力分布律，据此可以得到高阶浅水流动方程。
In this case, the flow should be described by high-order sallow water flow equation.
建立了二维浅水流动的旋涡诱导速度公式，在已知旋涡场和胀量场时，由该表达式可确定流动速度场。
A formula is deduced for the velocity induced by the vortices in two-dimensional shallow water flows and it is used to correct the Biot-Savart law.
导出了二维浅水流动的涡动方程与速度环量的随体导数表达式，以此为基础，分析了二维浅水流动中旋涡的动力学性质；
The vorticity equation was first established and the characteristics of vortex motion in two-dimensional shallow-water flows was analyzed, and then discrete vortex method (DVM) was briefly described.
计算结果表明：浅水流动计算程序及相应的并行算法具有计算效率高、收敛速度快以及计算精度高等优点，可进一步应用于天然河道流场的并行模拟。
The calculating program and its corresponding parallel algorithm are numerically stable, precise and quickly convergent. The algorithm can be used to simulate flow in rivers.
计算结果表明：浅水流动计算程序及相应的并行算法具有计算效率高、收敛速度快以及计算精度高等优点，可进一步应用于天然河道流场的并行模拟。
The calculating program and its corresponding parallel algorithm are numerically stable, precise and quickly convergent. The algorithm can be used to simulate flow in rivers.
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