| 基于代理模型方法的翼型优化设计 |
| |
| 引用本文： | 段焰辉,蔡晋生,刘秋洪.基于代理模型方法的翼型优化设计[J].航空学报,2011,32(4):617-627. |
| |
| 作者姓名： | 段焰辉 蔡晋生 刘秋洪 |
| |
| 作者单位： | 西北工业大学航空学院,陕西西安,710072 |
| |
| 摘 要： | 提出了基于代理模型的两步优化方法,用于翼型在黏性流场中气动外形的优化设计.第一步优化使用基于代理模型的遗传算法(GA)获得全局最优解的大致范围.以本征正交分解(POD)方法作为第一步优化中气动力计算的代理模型方法,降低遗传算法的计算量,并对其采样解的生成方法进行改进,提高了计算精度;第二步优化使用基于NavierSto...
|
| 关 键 词： | 优化设计 Navier-Stokes方程 遗传算法 最速下降法 代理模型 |
| 收稿时间： | 2010-06-30; |
Surrogate Model Based Optimization for Airfoil Design |
| |
| DUAN Yanhui,CAI Jinsheng,LIU Qiuhong.Surrogate Model Based Optimization for Airfoil Design[J].Acta Aeronautica et Astronautica Sinica,2011,32(4):617-627. |
| |
| Authors: | DUAN Yanhui CAI Jinsheng LIU Qiuhong |
| |
| Institution: | DUAN Yanhui,CAI Jinsheng*,LIU Qiuhong School of Aeronautics,Northwestern Polytechnical University,Xi'an 710072,China |
| |
| Abstract: | This article presents a two-step optimization based on a surrogate model for the aerodynamic shape optimization in a viscous flow.The first-step employs the genetic algorithm(GA) to search the range of the global optimal solution.The surrogate model gappy proper orthogonal decomposition(POD) is used to replace computational dluid dynamics to estimate the flow solution,and an improvement is made on the snapshots to raise the accuracy of the gappy POD.The second-step optimization employs the steepest descent ... |
| |
| Keywords: | optimal design Navier-Stokes equation genetic algorithm steepest descent algorithm surrogate model |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《航空学报》浏览原始摘要信息 |
| 点击此处可从《航空学报》下载免费的PDF全文 |
|
