中文摘要：

二维的数字模拟被执行用 immersed-bouhdary 方法学习似鱼的游泳陪衬的推进的表演。象在双人脚踏车安排的二条鱼一样的一条单个鱼被研究。首先，一条单个鱼的推进的表演上的阶段速度的效果被分析。起浪的鱼附近的 wake 结构和压力分发也被检验。结果由以前的研究人员与那些显示出好关联。第二，有一样的二条双人脚踏车鱼分阶段执行速度，振幅被学习。Theresults 表演鱼位于直接比单个的的在另一一个后面忍受更高的戳。

英文摘要：

Two-dimensional numerical simulations are performed to study the propulsive performance of fish-like swimming foils using the immersed-boundary method. A single fish as well as two fishes in tandem arrangement are studied. First, the effect of the phase speed on the propulsive performance of a single fish is analyzed. The wake structures and pressure distribution near the wavy fish are also examined. The results show good correlation with those by previous researchers. Second, two tandem fishes with the same phase speed and amplitude are studied. The results show that the fish situated directly behind another one endure a higher thrust than that of a single one.