Abstract
It is useful in education on fluid dynamics to show animated computer graphics expressed some kinds of flows, since they are dynamic phenomena. Therefore some animation programs by means of tracer method in which tracer points along streamline were successively illuminated by changing color codes for palettes were developed in this report. They were applied to potential flow around a rotating cylinder and around a joukowski aerofoil, Pitot tube in a flow, flow in an inlet section of a pipe, vortex flow, laminar and turbulent flow in a pipe.