Practical 3D Aerodynamic Design and Optimization Using Unstructured Meshes (1997)
| Venue: | AIAA J |
| Citations: | 31 - 4 self |
BibTeX
@ARTICLE{Elliott97practical3d,
author = {Jonathan Elliott and Jaime Peraire},
title = {Practical 3D Aerodynamic Design and Optimization Using Unstructured Meshes},
journal = {AIAA J},
year = {1997},
volume = {35},
pages = {35--9}
}
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Abstract
A methodology for performing optimization on 3D unstructured grids based on the Euler equations is presented. The same, low-memory-cost explicit relaxation algorithm is used to resolve the discrete equations which govern the flow, linearized direct and adjoint problems. The analysis scheme is a high resolution Local-ExtremumDiminishing (LED) type scheme which uses Roe decomposition for the dissipative fluxes. Mesh movement is performed in such a way that optimization of arbitrary geometries is allowed. The parallelization of the algorithm, which permits its extension to optimization of realistic, complete aircraft geometries is presented. Two sample optimizations are performed. The first is the inverse design of a transonic wing/body configuration using a surface target pressure distribution found by analyzing the geometry for known design variable deflections. The second exercise is the inverse design of a business jet configuration consisting of wing, body, strut, nacelle, horizontal...
