Abstract
The motion of rising bubbles in a cylindrical container is reproduced in a three-dimensional computer graphics. The time history of 3-D position and shape of bubbles is determined from stereoscope video images of real bubbly flow by using a conventional PTV technique. The OpenGL is used to produce the animation. The surface model is applied to draw the bubbles. In order to describe the bubbles in a realistic manner, a semitransparent color is used to draw the surface of bubbles. The swap buffer method is used to realize the real-time animation. Sequential panoramic images of the bubbly flow are achieved by using the present technique. It is found that the playing speed of animation depends on the power of CPU.
