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中文核心期刊

浮力-热毛细对流表面位型研究

Study on the surface deformation in buoyant-thermcapillary convection using the optical bar lines method

  • 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.

     

    Abstract: An optical diagnostic system with image processor isdeveloped for study of the kinetics of Buoyant-Thermcapillary Convection.The convection, surface deformation in a rectangular cavity withsidewalls of different temperatures are investigated. Thesurface deformations are calculated with the correlation analysis. Thepresent experiment demonstrates that the surface deformation is relatedwith the temperature gradient, surface tension and buoyancy.

     

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