抄録
The three dimensional visualization is an important method to understand the flow structure. In this study, the program that can pursue a motion of arbitrary two or more passivity particles is constructed for the Taylor-Couette flow with small aspect ratio. It can visualize a flow field in three dimensions. The inner cylinder is rotating whereas the outer cylinder and the end wall of cylinders are stationary. The velocity data that is in the quasi-steady state after fully developed flows are used. Using the staggered grid, the an algorithm of interpolation method in three dimensions is developed and we succeeded to pursue a fluid particle. A user can change a starting position of a particle, time interval, velocity data, iteration number and the circumferential velocity component. After drawing path lines, the user can change a point of view with mouse operation.