【摘要】 以降落伞为代表的流柔耦合问题是一个涉及柔性结构大变形与周围流场相互耦合的复杂非线性问题.针对此问题，应用XFLOW-ABAQUS联合仿真对流柔耦合问题进行数值模拟.采用该方法对不同透气性的旗帜在Re=2.2×10~4气流中的拍动进行数值模拟，并与实验数据进行对比，验证该方法的有效性.然后对Re=6.2×10~5来流中柔性十字形伞的气动特性进行数值模拟，并与实验数据以及使用LS-DYNA的数值模拟结果进行比较，分析了十字形伞周围的流场特征，进一步证明了XFLOW-ABAQUS联合仿真在模拟流柔耦合问题上具有良好的表现.更多还原

【Abstract】 Fluid-flexible structure interaction represented by parachute is a complex nonlinear problem that involves the interaction between large deformation of a flexible structure and the surrounding fluid field. To deal with this problem, the XFLOW-ABAQUS co-simulation was applied to simulate fluid-flexible structure interaction. This method was used to numerically simulate the flapping of flags with a different permeability in a uniform flow with Re=2.2×10~4, and the simulation results were compared with experimental data, validating the effectiveness of this method. Then, numerical simulations were conducted on the aerodynamic characteristics of a flexible cross parachute in a uniform flow with Re=6.2×10~5, and the simulation results were compared with the experimental data and the simulation results using LS-DYNA. The flow field characteristics around the cross parachute were analyzed, further verifying the good performance of the XFLOW-ABAQUS co-simulation in fluid-flexible structure interaction.更多还原