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论文:2012,Vol:30,Issue(1):68-72 |
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引用本文： |
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王龙, 宋文萍, 杨旭东. 一种基于伴随方程攻角不变的多目标优化减阻方法[J]. 西北工业大学 |
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Wang Long, Song Wenping, Yang Xudong. A New and Effective Method of Multi-Objective Drag Reduction with Fixed Angle of Attack Based on Adjoint Equation[J]. Northwestern polytechnical university |
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| 一种基于伴随方程攻角不变的多目标优化减阻方法 |
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| 王龙, 宋文萍, 杨旭东 |
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| 西北工业大学 翼型、叶栅空气动力学国防科技重点实验室,陕西 西安 7l0072 |
| 摘要: |
| 基于伴随梯度优化方法,文章提出了一种在翼型多目标减阻设计中,能够保持升力不变而不必调整攻角的一种新算法。该方法将升力不变约束归入目标函数,在伴随方程的边界条件中引入对升力变化的修正,从而满足升力不变的约束要求。通过S73613和RAE2822两个翼型的减阻算例,验证了该方法的正确性。 |
| 关键词:
伴随优化
优化减阻
翼型设计
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| A New and Effective Method of Multi-Objective Drag Reduction with Fixed Angle of Attack Based on Adjoint Equation |
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| Wang Long, Song Wenping, Yang Xudong |
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| National Key Laboratory of Science and Techniques on Aerodynamic Design and Research,Northwestern Polytechnical University,Xi'an 710072,China |
| Abstract: |
| Aim.The introduction of the full paper discusses relevant matters and then proposes the drag reductionmethod mentioned in the title,which we believe is new and effective and which is explained in sections 1 and 2.Their core consists of: "Using adjoint-based gradient optimization method, we present a new method for multi-objec-tive drag reduction,which keeps the lift fixed without the need of adjusting the angle of attack.The constraint offixed lift is included in the objective function,and the variation of the lift is introduced into the adjoint equationboundary conditions."We present two drag reduction designs respectively of S73613 and RAE2822.The calculateddesign results,presented in Figs.1 through 4,and their analysis show preliminarily that our design method is in-deed valid and effective. |
| Key words:
airfoils
algorithms
analysis
boundary conditions
calculations
control
computational fluid dynam-ics
design
drag
efficiency
functions
lift
Navier Stokes equations
numerical methods
optimiza-tion
pressure distribution
adjoint equation
drag reduction
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| 收稿日期: 2011-03-22
修回日期:
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| DOI: |
| 基金项目: 航空基金(2009ZA53008)与国家高新技术研究发展计划(2007AAA05Z448)资助 |
| 通讯作者:
Email： |
| 作者简介: 王龙(1975-),西北工业大学博士后,主要从事空气动力力学计算设计及实验研究。
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| 相关功能 |
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| 作者相关文章 |
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| 王龙 在本刊中的所有文章 |
| 宋文萍 在本刊中的所有文章 |
| 杨旭东 在本刊中的所有文章 |
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参考文献: |
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[4] Lee J, Jameson A. NLF Airfoil and Wing Design by Adjoint Method and Automatic Transition Prediction. AIAA-2009-3514
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