Systematic continuous adjoint approach to viscous aerodynamic design on unstructured grids

被引：47
|
作者：
Castro, Carlos [1 ]
Lozano, Carlos
Palacios, Francisco
Zuazua, Enrique
机构：
[1] Univ Politecn Madrid, Sch Civil Engn, Dept Math & Computat, E-28040 Madrid, Spain
[2] Inst Nacl Tecn Aeroespacial, Dept Aerodynam & Propuls, Fluid Dynam Branch, E-28850 Madrid, Spain
来源：
AIAA JOURNAL | 2007年 / 45卷 / 09期
关键词：
D O I：
10.2514/1.24859
中图分类号：
V [航空、航天];
学科分类号：
08 ; 0825 ;
摘要：
A continuous adjoint approach to aerodynamic design for viscous compressible flow on unstructured grids is developed. Sensitivity gradients are computed using tools of shape deformation of boundary integrals. The resulting expressions involve second-order derivatives of the flow variables that require numerical solvers with greater than second-order accuracy. A systematic way of reducing the order of these terms is presented. The accuracy of the sensitivity derivatives is assessed by comparison with finite-difference computations, and the validity of the overall methodology is illustrated with several design examples.
引用
收藏
页码：2125 / 2139
页数：15
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