Wake is motive bubble film, research of motive bubble is basis of Wake research. Using digital image process technology is a fire-new detection and analytic method.
运动气泡的研究是尾流研究的基础，利用数字图像处理技术研究运动气泡幕是一种全新的探测分析方法。
2
Compare with traditional method of motive bubbledetection and analysis, it has some advantages, such as visibility, real time, high-efficient, easily realized in projects, and so on.
它与传统的运动气泡探测分析方法相比，具有直观、实时、高效、易于工程化等优点。
3
The basic principle, accuracy and resolution of the leak detectionmethod by means of bubble emission were investigated, and the calculating formula of leakage rates was derived.