Ueda M, Kagawa K, Yamada K, Yamaguchi C, Harada Y
Fukui University, Fukui 910, Japan.
Appl Opt. 1982 Sep 15;21(18):3269-72. doi: 10.1364/AO.21.003269.
An application of holographic interferometry to Rayleigh-Bénard flow is reported. A fluid seeded with fine alumina particles is illuminated with sheetlike light, and the light scattered from the plane is recorded in a hologram. The reconstructed images give 2-D full-field velocity information within the volume of moving liquid at any instant in time. The convective rolls are regular and oriented perpendicular to the long side of the cell. The vertical velocity distribution closely approximates a sinusoidal function of the horizontal distance and its maximum is nearly proportional to the half-power of the reduced temperature.
报道了全息干涉测量法在瑞利-贝纳德流中的应用。用片状光照射含有细氧化铝颗粒的流体，从平面散射的光被记录在全息图中。重建图像给出了运动液体体积内任意时刻的二维全场速度信息。对流涡是规则的，并且垂直于单元的长边排列。垂直速度分布非常接近水平距离的正弦函数，其最大值几乎与折合温度的半幂成正比。
