Overview of sensitivity analysis and shape optimization for complex aerodynamic configurations

被引:90
作者
Newman, JC [1 ]
Taylor, AC
Barnwell, RW
Newman, PA
Hou, GJW
机构
[1] Mississippi State Univ, Dept Aerosp Engn, Mississippi State, MS 39762 USA
[2] Old Dominion Univ, Dept Engn Mech, Norfolk, VA 23529 USA
[3] Virginia Polytech Inst & State Univ, Virginia Consortium Engn & Sci Univ, Dept Aerosp & Ocean Engn, Hampton, VA 23666 USA
[4] Virginia Polytech Inst & State Univ, Dept Engn Sci & Mech, Hampton, VA 23666 USA
[5] NASA, Langley Res Ctr, Multidisciplinary Optimizat Branch, Hampton, VA 23681 USA
来源
JOURNAL OF AIRCRAFT | 1999年 / 36卷 / 01期
关键词
D O I
10.2514/2.2416
中图分类号
V [航空、航天];
学科分类号
08 [工学]; 0825 [航空宇航科学与技术];
摘要
This paper presents a brief overview of some of the more recent advances in steady aerodynamic shape-design sensitivity analysis and optimization, based on advanced computational fluid dynamics (CFD), The focus here is on those methods particularly well-suited to the study of geometrically complex configurations and their potentially complex associated flow physics. When nonlinear state equations are considered in the optimization process, difficulties are found in the application of sensitivity analysis. Some techniques for circumventing such difficulties are currently being explored and are included here. Attention is directed to methods that utilize automatic differentiation to obtain aerodynamic sensitivity derivatives for both complex configurations and complex flow physics. Various examples of shape-design sensitivity analysis for unstructured-grid CFD algorithms are demonstrated for different formulations of the sensitivity equations. Finally, the use of advanced, unstructured-grid CFDs in multidisciplinary analyses and multidisciplinary sensitivity analyses within future optimization processes is recommended and encouraged.
引用
收藏
页码:87 / 96
页数:10
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