Abstract
A fluid flow mapper is used as the equipment to visualize and simulate the two or three dimensional potential fields. The fluid flow mapper consists mainly of a glass and plaster plates which constitute a thin channel, and a stationary potential flow appears in the channel. A potential flow is subject to the influence of the pressure and velocity of the fluid in a narrow space. Stream lines of the potential flow are visualized by a methylene blue in the water. This paper analyze an electric field at the boundary in the complex dielectrics of the parallel plate electrodes system by the fluid mapper. Equi-potential lines are formed from the flow lines by a circle-in method. The results agree with the numerical values by culculations of a computer. Accordingly, it can be understood that flow patterns from the fluid flow mapper show electric force lines. This method has the great advantages that potential fields can be observed continuously and results of the numerical calculation by the computer can be inspected. Moreover, this method is very useful to analyze Laplace and Poisson fields in the multi-dielectrics substances.
