| 零净质量射流的数值模拟 |
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| 引用本文： | 石清,李桦.零净质量射流的数值模拟[J].空气动力学学报,2011,29(1). |
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| 作者姓名： | 石清 李桦 |
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| 作者单位： | 1. 中国空气动力研究与发展中心,四川,绵阳,621000;国防科学技术大学航天与材料工程学院,湖南,长沙,410073
2. 国防科学技术大学航天与材料工程学院,湖南,长沙,410073 |
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| 摘 要： | 对零净质量射流致动器的流场和有零净质量射流时翼型的绕流流场进行了数值模拟,分析了动网格与几何守恒率、边界条件、湍流模型对零净质量射流致动器流场计算的影响,分析了零净质量射流的速度幅值和驱动频率对翼型增升效果的影响.研究结果表明,在复杂计算中可以对能动部件的边界作赋值处理;随着射流速度幅值的增加,翼型的平均升力系数和阻力系数都要增加;射流频率对升力的影响呈非线性.
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| 关 键 词： | 零净质量射流 动网格 数值边界条件 湍流模型 非定常流动 |
Numerical simulation of the zero mass jet flow |
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| SHI Qing,LI Hua.Numerical simulation of the zero mass jet flow[J].Acta Aerodynamica Sinica,2011,29(1). |
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| Authors: | SHI Qing LI Hua |
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| Institution: | SHI Qing1,2,LI Hua2(1.China Aerodynamics Research and Development Center,Mianyang,Sichuan,621000,China,2.College of Aerospace and Material Engineering,National Defense University of Science and Technology,Changsha,Hunan,410073,China) |
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| Abstract: | Numerical simulation methods are used to investigate the actuator of zero mass jet flow and the flow around airfoil with zero mass jet flow.The effects on the actuator of zero mass jet flow are analysed about dynamic grid,geometry conservation law,numerical boundary conditions,and turbulence mode.And the effects on increasing lift are analysed also,including the jet flow velocity and frequency.The results indicate that numerical boundary conditions of the actuator of zero mass jet flow can be treated with g... |
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| Keywords: | zero mass jet flow dynamic grid numerical boundary conditions turbulence mode unsteady flow |
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