The measurement and analysis of motion behavior of bubbles in calm water

In this article, high speed photograph equipment was used to take photos for the bubbles in the calm water, which were under the steady conditions and can describe the dynamic property of the bubbles. According to image process technology, photo elements were converted into binary normal forms to trace the bubble's barycenter to get its motion characteristic. Combining with Stokes and Karman Vortex theory, the characteristic of ascendant motion of bubbles with different size was obtained through programming and analyzing the data. Also, the experiment result and theory analysis were compared with each other to evaluate its feasibility. This steady can provide a foundation for further investigation on bubble motion with disturbance.