Efficient aerodynamic shape optimization by structure exploitation

被引：2

作者：

Gauger, Nicolas ^{[1
]}

Walther, Andrea ^{[2
]}

Oezkaya, Emre ^{[1
]}

Moldenhauer, Carsten ^{[3
]}

机构：

[1] Rhein Westfal TH Aachen, CCES, Computat Math Grp, Aachen, Germany

[2] Paderborn Univ, Inst Math, Paderborn, Germany

[3] Humboldt Univ, Inst Comp Sci, D-10099 Berlin, Germany

来源：

OPTIMIZATION AND ENGINEERING | 2012年 / 13卷 / 04期

关键词：

Gradient-based optimization; Discrete adjoints; Automatic differentiation; Reverse accumulation; ALGORITHMS;

D O I：

10.1007/s11081-011-9184-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper, we consider an optimization problem for the complete design chain of an airfoil. Starting with a parameter vector, one has to perform a three step procedure to evaluate the desired objective: Generate a grid around the airfoil, compute the flow around the airfoil, and compute the objective. Applying a gradient-based optimization method, one has to provide derivatives for this complex process. In the present paper, we propose the advanced use of automatic differentiation to compute the required gradient information. We report numerical results together with a mesh independency study and an analysis of the optimization process for an inviscid RAE2822 airfoil under transonic flight conditions.

引用

页码：563 / 578

页数：16

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