摘要
为了减少优化过程中反复生成计算网格的时间,本文基于自由变形技术(FFD)和Delaunay图映射,构建了适用于不同网格类型的网格变形技术,实现了从几何外形参数化到计算网格变形。进一步结合SVR模型和遗传算法,构建了比较完整的气动优化设计平台,并利用该平台完成了翼型的单设计点和多设计点气动优化设计。
In order to decrease the time of grid generation during the optimization,in this paper,based on free-form deformation(FFD) and Delaunay graph mapping,the grid deformation technique is set up,which is suitable to different kinds of grid.This grid deformation technique achieves the process from geometry parameterization to volume grid deformation.Combined with SVR model and genetic algorithm,a comparatively complete aerodynamic optimization platform is set up and used to perform twodimensional airfoil single-point and multi-points aerodynamic optimization.
引文
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