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中文摘要：
通过修改流体-结构界面处流体域的边界条件并引入松耦合方法，改进了一种求解气动弹性问题的数值计算方法．该数值计算方法的网格生成、流场求解、结构求解和数据交换四个过程相互独立，因而有可能利用现有的发展比较成熟的商用网格生成器、CFD（computational fluid dyllamics）求解器和CSD（computational structural dymrmcs）求解器分别完成这些功能．通过对折减阻尼比为0．0208的圆柱涡激振动问题在雷诺数为100条件下的计算结果进行分析，表明该方法是可行的．
英文摘要：
By virtue of modifying boundary conditions of the fluid domain on the fluid-structure interface and inoorporating loosely coupled method, a numerical method for solving the aeroelastic problems is developed. Four processes of mesh generation, flow field solution, structure solution and data transfer in the numerical method are independent of each other, and as a result, developed oommercial software of mesh generator, computational fluid dynamics （CFD） and computational structural dynamics （CSD） solvers can be used to fulfill these functions respectively. The method is validated by a lateral vortex-induced vibration problem of the flow about a circular cylinder at the reduced damping ratio of 0. 0208 and＇Reynolds number of 100.
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