基于伴随方法的机翼多设计点气动反设计方法

摘要

针对三维机翼多点多约束气动反设计问题,基于伴随理论方法和粘性流雷诺平均N-S方程,通过粘性流数值模拟、伴随方程与梯度精确数值求解、计算网格高效算法及梯度类优化算法等有效结合,并采用考虑多设计点梯度权重系数的并行计算近似模式,开展了一种三维机翼多设计点多约束气动反设计方法研究,进行了典型算例验证.研究表明:所发展的机翼多设计点气动反设计方法具有较好的鲁棒性及优化效率.%This paper focuses on multi- point constrained aerodynamic inverse design of wing based on adjoint method using Reynolds- Averaged N- S equation. By an effective combination of viscous flow numerical simulation, adjoint equation and gradient accurate solution, efficient grid generation and gradient optimum algorithm etc,a multi- point constrained aerodynamic inverse design method of wing is studied. The multi- point gradient is calculated by weighted average from different design points,and the design process is accelerated by means of an approximate parallel calculation model. Finally, the typical inverse design examples of wing are presented. The results demonstrate the multi - point aerodynamic inverse design method of wing has good robustness and optimization efficiency.