| 彩色计算干涉技术及应用 |
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| 引用本文： | 吴颖川,乐嘉陵,贺安之.彩色计算干涉技术及应用[J].实验流体力学,2002,16(1):80-86. |
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| 作者姓名： | 吴颖川 乐嘉陵 贺安之 |
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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. 南京理工大学应用物理系,江苏,南京210094 |
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| 基金项目： | 国防自然科学基金资助项目 ( 1 98892 0 9) |
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| 摘 要： | 在对高速气流进行干涉法测量时 ,由于激波的作用或者光的散射、斑点等现象 ,干涉图的干涉条纹可能会出现不连续。笔者通过仿真M Z干涉仪或全息干涉仪光学模型 ,并且采用对多块不规则网格的计算流体力学结果进行重构的直接体视化图形算法 ,得到了高分辨率的彩色数值干涉图 ,克服了干涉条纹的不连续性并给出了一个弹道靶中超高声速钝锥流场的例子
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| 关 键 词： | 干涉术 计算流动显示 体视化 数值图像处理 |
| 文章编号： | 1007-3124(2002)01-0080-07 |
| 修稿时间： | 2001年11月12 |
Colored CFI-interferometry in experimental interferogram processing for hypersonic blunted cone flow in ballistic range |
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| WU Ying chuan ,LE Jia ling ,HE An zhi.Colored CFI-interferometry in experimental interferogram processing for hypersonic blunted cone flow in ballistic range[J].Experiments and Measur in Fluid Mechanics,2002,16(1):80-86. |
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| Authors: | WU Ying chuan LE Jia ling HE An zhi |
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| Institution: | WU Ying chuan 1,LE Jia ling 1,HE An zhi 2 |
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| Abstract: | As the result of the presence of shockwaves, or because of the spots of light, scattering, diffraction and other phenomena hiding the information searched in the experiment, discontinuities of the fringes are found in the interferogram of high velocity gas flows. A colored CFI-Interferometry that assists processing the experimental interferogram to overcome discontinuities is described. The methods include the theoretical modeling of colored CFI Interferometry simulating M Z or holographic Interferometer and the direct volume rendering algorithms based on regularization of multi grids CFD solutions to obtain high-resolution digital images. An example for hypersonic blunted cone flow in ballistic range is illustrated. |
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| Keywords: | interferometry computational flow imaging volume rendering digital image processing |
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