| 浮力-热毛细对流表面位型研究 |
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| 引用本文： | 袁枫,段俐,康琦.浮力-热毛细对流表面位型研究[J].力学学报,2007,39(2):217-222. |
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| 作者姓名： | 袁枫 段俐 康琦 |
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| 作者单位： | 中国科学院力学研究所国家微重力实验室,北京100080 |
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| 摘 要： | 将栅线结构光源系统与图像处理技术相结合,形成一种实时诊断浮力-热毛细对流表面形貌的光学测量系统.研究两端带有温差的矩形池内薄层流体的表面变形.应用图像互相关方法对实验结果进行计算和分析,得到了流体表面变形定量的实验结果.实验结果表明了在浮力-热毛细对流的发展过程中,出现流体表面变形,温度梯度、表面张力、浮力、液固亲润问题、以及壁面温度决定了该表面变形大小和变形方向.
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| 关 键 词： | 浮力-热毛细对流 表面变形 光学栅线测量技术 |
| 文章编号： | 0459-1879（2007）02-0217-06 |
| 收稿时间： | 2005-10-20 |
| 修稿时间： | 2006-09-13 |
STUDY ON THE SURFACE DEFORMATION IN BUOYANT-THERMCAPILLARY CONVECTION USING THE OPTICAL BAR LINES METHOD |
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| Yuan Feng,Duan Li,Kang Qi.STUDY ON THE SURFACE DEFORMATION IN BUOYANT-THERMCAPILLARY CONVECTION USING THE OPTICAL BAR LINES METHOD[J].chinese journal of theoretical and applied mechanics,2007,39(2):217-222. |
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| Authors: | Yuan Feng Duan Li Kang Qi |
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| Institution: | National Microgravity Laboratory/CAS; Institute of Mechanics, Chinese Academy of Sciences, Beijing 100080, China |
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| Abstract: | An optical diagnostic system with image processor is developed for study of the kinetics of Buoyant- Thermcapillary Convection. The convection and surface deformation in a rectangular cavity with sidewalls of different temperatures are investigated. The surface deformations are calculated with the correlation analysis. The present experiment demonstrates that the surface deformation is related with the temperature gradient, surface tension and buoyancy. |
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| Keywords: | buoyancy-thermocapillary convection surface deformation the optical bar lines technique |
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