A Study of Shape Parameterisation Methods for Airfoil Optimisation
A Study of Shape Parameterisation Methods for Airfoil Optimisation
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DOI：
10.2514/6.2004-4482
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发表时间：
2004-08
期刊：
影响因子：
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通讯作者：
Wenbin Song;A. Keane
中科院分区：
文献类型：
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作者：
Wenbin Song;A. Keane
本文提出了一种基于CAD的设计优化框架内的翼型形状优化的参数化方法的研究。本文的目的是研究不同的方法对翼型形状优化时，使用计算流体动力学（CFD）的效果。几何参数化是形状优化的基本要求之一，并且在进行多学科设计优化时提出了进一步的挑战，因为保持分析域之间的形状一致性至关重要，同时从相同的CAD定义提供不同的分析模型。通常情况下，在定义参数模型时存在许多可能性，并且它将在很大程度上规定目标函数的搜索空间和景观的范围。本文采用试验设计和优化方法，从气动外形优化方法的灵活性和精确性两个方面，对几种有代表性的参数化方法进行了研究。
This paper presents a study on parameterisation methods for airfoil shape optimisation within a CAD-based design optimisation framework. The objective of the paper is to study the eect of dierent methods on airfoil shape optimisation when using computational fluid dynamics (CFD). Parameterisation of geometry is one of the essential requirements in shape optimisation, and it presents further challenges when carrying out multidisciplinary design optimisation, as it is critically important to maintain shape consistency between analysis domains, while providing dierent analysis models from the same CAD definition. It is usually the case that there are numerous possibilities in defining the parametric model, and it will prescribe to a large extent the scope of the search space and landscape of the objective function. This paper adopts design of experiments and optimisation approaches to study several representative parameterisation methods in terms of flexibility and accuracy of the methods for aerodynamic shape optimisation.