| 光在超声速湍流边界层中的传输 |
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| 引用本文： | 陈勇,柳建,李树民,金钢.光在超声速湍流边界层中的传输[J].计算物理,2006,23(2):204-208. |
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| 作者姓名： | 陈勇 柳建 李树民 金钢 |
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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;2. 中国科学院光电技术研究所, 四川 成都 610209 |
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| 摘 要： | 采用数值方法分析超声速边界层流场对光传输的影响,并根据光波的变化对流场特征进行分析.用法福尔质量加权平均N-S方程及两方程湍流模型求解三维超声速平板湍流边界层流动;光在流场中的传输采用傍轴近似光波传输方程描述,用相屏法和快速傅里叶变换(FFT)技术求解.利用穿越流场的光波光强和相位的改变,直观分析光波畸变和流场的部分特征信息.
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| 关 键 词： | 超声速流 边界层 相屏法 光波畸变 |
| 文章编号： | 1001-246X（2006）02-0204-05 |
| 收稿时间： | 2004-11-15 |
| 修稿时间： | 2005-05-20 |
Propagation of Light in a Supersonic Turbulence Boundary Layer |
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| CHEN Yong,LIU Jian,LI Shu-min,JIN Gang.Propagation of Light in a Supersonic Turbulence Boundary Layer[J].Chinese Journal of Computational Physics,2006,23(2):204-208. |
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| Authors: | CHEN Yong LIU Jian LI Shu-min JIN Gang |
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| Institution: | 1. China Aerodynamics Research and Development Center, Mianyang 621000, China;2. Institute of Optics and Electronics, Chinese Academy of Science, Chengdu 610209, China |
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| Abstract: | Propagation of light in a supersonic flat turbulence boundary layer is numerically analyzed. The flow characteristics are studied according to the optic wave-front variance. The mass-weight averaging N-S equations are adopted as the governing equations of flow, and a twoequation turbulent model is employed. Light propagation is described by paraxial wave equations and solved by a phase-screen method combined with the FFT technique, Light intensity distribution and phase aberrations are given in order to show the optic aberrations as well as the flow characteristics. |
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| Keywords: | supersonic flow boundary layers phase-screen method optic aberrations |
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