| タイトル | On the Use of CAD and Cartesian Methods for Aerodynamic Optimization |
| 本文（外部サイト） | http://hdl.handle.net/2060/20040066091 |
| 著者（英） | Pulliam, T. H.; Aftosmis, M. J.; Nemec, M. |
| 著者所属（英） | NASA Ames Research Center |
| 発行日 | 2004-07-01 |
| 言語 | eng |
| 内容記述 | The objective for this paper is to present the development of an optimization capability for Curt3D, a Cartesian inviscid-flow analysis package. We present the construction of a new optimization framework and we focus on the following issues: 1) Component-based geometry parameterization approach using parametric-CAD models and CAPRI. A novel geometry server is introduced that addresses the issue of parallel efficiency while only sparingly consuming CAD resources; 2) The use of genetic and gradient-based algorithms for three-dimensional aerodynamic design problems. The influence of noise on the optimization methods is studied. Our goal is to create a responsive and automated framework that efficiently identifies design modifications that result in substantial performance improvements. In addition, we examine the architectural issues associated with the deployment of a CAD-based approach in a heterogeneous parallel computing environment that contains both CAD workstations and dedicated compute engines. We demonstrate the effectiveness of the framework for a design problem that features topology changes and complex geometry. |
| NASA分類 | Aircraft Design, Testing and Performance |
| 権利 | No Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/222238 |
