| Detached-EddySimulation方法模拟不同类型翼型的失速特性 |
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| 引用本文： | 李栋,焦予秦,Igor Men'shov,中村佳朗.Detached-EddySimulation方法模拟不同类型翼型的失速特性[J].航空学报,2005,26(4):406-410. |
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| 作者姓名： | 李栋 焦予秦 Igor Men'shov 中村佳朗 |
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| 作者单位： | 1. 西北工业大学,航空学院,翼型、叶栅重点实验室,陕西,西安,710072
2. 名古屋大学,工学部航空系,日本,爱知,名古屋,4648603 |
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| 基金项目： | 航空科学基金(01A53005)资助项目 |
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| 摘 要： | 应用DES(Detached-EddySimulation)方法数值模拟了3种不同失速类型的翼型的升力特性。DES方法结合了RANS(Reynolds-averagedNavier-Stokes)和LES(LargeEddySimulationapproaches)的优点。基于Spalart-Allmaras湍流模型,在近壁面DES体现为RANS模型的特点而在远离物面处又具有LES的亚格子模型的特性。对此模型使用了LU-SGS隐式格式求解。通过和实验结果对比,显示这种方法可以有效地预测翼型的失速特性。
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| 关 键 词： | 计算流体力学 翼型失速 detached-eddysimulation Spalart-Allmaras湍流模型 |
| 文章编号： | 1000-6893(2005)04-0406-05 |
| 修稿时间： | 2004年3月30日 |
Detached-Eddy Simulation for Airfoil Stall |
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| LI Dong,JIAO Yu-qin,Igor Men'shov,Yoshiaki NAKAMURA.Detached-Eddy Simulation for Airfoil Stall[J].Acta Aeronautica et Astronautica Sinica,2005,26(4):406-410. |
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| Authors: | LI Dong JIAO Yu-qin Igor Men'shov Yoshiaki NAKAMURA |
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| Institution: | 1. Center of Airfoil Design and Research, School of Aeronautics, Northwestern Polytechnical University, Xi'an 710072, China;2. Department of Aerospace Engineering, Nagoya University, Nagoya 4648603, Japan |
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| Abstract: | Detached-Eddy Simulation (DES) is applied to three airfoils with different stall types. The method combines the strong points of Reynolds-averaged Navier-Stokes and Large Eddy Simulation approaches. Spalart-Allmaras Model is basically used, which reduces to a RANS formulation near a solid surface and to a subgrid model away from the wall. LU-SGS implicit scheme is employed to solve the model in time. Comparing with the experiment data, it is found that stall angle can be reasonably predicted by the present method. |
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| Keywords: | computational fluid dynamics airfoil stall detached-eddy simulation Spalart-Allmaras turbulence model |
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