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中文摘要：
基于沉浸的边界方法，为一个震荡的机翼的数字模拟被建立，震荡的机翼的初步的分析在液体结构的物理理解上与一个重音被介绍相互作用。以便验证方法，二个模拟盒子：在低 K-C 数字和自由震荡柱体的二度的震荡的圆形的柱体首先被执行，结果在对以前的研究的好同意。在震荡的机翼模拟，这被发现减少的速度 U * 是一个很敏感的因素，特别 U *2.8 是在现在的工作的批评稳定的边界。方法显示出为如此的一个复杂液体结构相互作用问题在计算过程节省的时间的优势。
英文摘要：
Based on the immersed boundary method, a numerical simulation for an oscillating airfoil is established and a preliminary analysis of the oscillating airfoil is presented with an emphasis on the physical understanding of fluid-structure interaction. In order to validate the method, two simulation cases： oscillating circular cylinder at low K-C number and two degrees of freedom oscillating cylinder are carded out first and the results are in good agreement with the previous re：searches. In the oscillating airfoil simulation, it is found that the reduced velocity U^＊. is a very sensitive factor and especially U^＊-2.8 is the critical stable boundary in the present work. The method shows the predominance of time saving in computational process for such a complicated fluid-structure interac- tion problem.
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