三维机翼的静气动弹性特性数值模拟研究

发展了一种计算流体动力学（CFD）和计算结构动力学（CSD）的耦合计算方法，对三维机翼的静气动弹性进行了数值模拟研究。采用三维欧拉方程为控制方程基于直角网格计算气动力，并耦合结构静平衡方程进行静气动弹性数值模拟，设计了CFD/CSD耦合计算的数据交换的方式。以M6机翼作为算例，进行了机翼静气动弹性的数值模拟，计算结果表明所发展的三维机翼静气动弹性数值模拟方法是合理可行的，并可作为机翼结构优化设计和考虑结构弹性变形影响的气动外形优化设计的基础。

Numerical Simulation Study of Static Aero-elastic for Three-dimensional Aircraft Wing

In this paper, a numerical simulation technology which combined Computational Fluid Dynamics （CFD） method with Computational Structure Dynamic （CSD） is developed. A numerical simulation study of static aero- elastic for three- dimensional aircraft wing is carried out. To analysis aerodynamic performance, three- dimensional Euler equations solver based on Cartesian grid are used and structure static equilibrium equations are coupled for static aero- elastic numerical simulation. Mode of exchange data in the CFD/CSD coupled computation is designed. In this paper, M6 wing as an example, the wing static aero- elastic numerical simulation is carried out. The computed result indicates method of static aero- elastic numerical simulation on the three- dimensional aircraft wing is reasonable and feasible. This method provides a base for wing structure optimization design and aerodynamic shape optimization design considering structure elasticity deformation.