波浪流谱图象的数据处理

Numerical Processing of Wave Flow Patterns

利用流动显示技术在实验室拍摄的波浪流谱图象,含有丰富的波动场的物理参数的信息。本文利用实拍的典型流谱图象,采用微电脑系统图象处理技术,计算和绘制了波动质点轨迹速度和加速度场,包括波周内过程分布和波长内沿垂线断面分布图。并与流中的二阶斯托克斯波理论的计算值进行了比较,证明一致性是比较好的。

Wave flow-visualization pictures consist of much valuable information about the meachnism of the flow field with waves and current,By means of image-processing techniques, orbital velocity and acceleration distributions at various phase and water level are calculated and pictures are made by microcomputer system.Comparison between the theoretical results and experimental data for a typical example of wave flow field shows a good agreement.