基于XFLOW-ABAQUS联合仿真的十字形伞绕流流柔耦合数值模拟  

Fluid-Flexible Structure Interaction Simulation of Flow over Cross Parachute Based on XFLOW-ABAQUS Co-Simulation

作　　者：胡俊[1] 赵卓群 于勇[1] HU Jun;ZHAO Zhuoqun;YU Yong(School of Aerospace Engineering,Beijing Institute of Technology,Beijing 100081,China)

机构地区：[1]北京理工大学宇航学院,北京100081

出　　处：《北京理工大学学报》2024年第8期859-871,共13页Transactions of Beijing Institute of Technology

基　　金：航天伺服驱动与传动技术实验室开放基金资助项目(LASAT-2022-A03-01)。

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.Fluid-flexible structure interaction represented by parachute is a complex nonlinear problem that in-volves 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 interac-tion.This method was used to numerically simulate the flapping of flags with a different permeability in a uni-form flow with Re=2.2×10^(4),and the simulation results were compared with experimental data,validating the ef-fectiveness 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 flu-id-flexible structure interaction.

关 键 词：流柔耦合 XFLOW ABAQUS 旗帜 十字形伞 

分 类 号：O355[理学—流体力学]