| 基于伴随算子的翼尖小翼优化设计 |
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| 引用本文： | 杨洋,刘学强,覃宁.基于伴随算子的翼尖小翼优化设计[J].航空计算技术,2012(3):85-88. |
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| 作者姓名： | 杨洋 刘学强 覃宁 |
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| 作者单位： | [1]西北工业大学,陕西西安710072 [2]南京航空航天大学,江苏南京210016 |
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| 摘 要： | 采用基于伴随算子的优化设计方法,对跨音速翼尖小翼进行了优化设计。其中,采用基于多块结构网格的流场解算器计算气动力。解算器的空间离散采用Osher格式,湍流模型采用k-ω两方程模型。优化设计结果表明,采用优化设计后的翼尖小翼,能改善机翼的气动特性,在巡航状态下翼尖小翼能增加机翼的升阻比5.8%,从数值计算的角度表明了方法的有效性。
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| 关 键 词： | 跨音速 翼尖小翼 优化设计 数值模拟 紊流模型 |
Optimization Design of Transonic Winglet Based on Discrete Adjoint Method |
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| YANG Yang,LIU Xue- qiang,QIN Ning.Optimization Design of Transonic Winglet Based on Discrete Adjoint Method[J].Aeronautical Computer Technique,2012(3):85-88. |
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| Authors: | YANG Yang LIU Xue- qiang QIN Ning |
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| Institution: | 1. Northwestern Polytechnical University,Xi＇an 710072, China ; 2. Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China) |
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| Abstract: | Aerodynamic optimization design of transonic scheme is used to solve the Navier- Stokes equations to lence model is make it possibl for original des winglet is presented in this paper. The Osher obtain the aerodynamic coefficients. The turbu- k -to model. A discrete adjoint solver is used to calculate efficiently the gradients, which e to optimize for a large number of design variables. The coefficient design method is used ign. The results show that the optimization of winglet can improve to 5.8%, and validate this method |
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| Keywords: | transonic winglet numerical simulation optimization turbulence model |
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