Abstract

Three-dimensional visualized flow analysis of unsteady flow structure was quantitatively carried out by means of personal computer with image processing system. Images of the flow field visualized with dye are three-dimensionally captured by CCD camera and stroboscope.Time sequences of digitized images of stroboscope are stored in computer memory using a memory board and are analyzed successively. This system is able to prepare larger amount of time sequential data than a usual camera system does. The system is applied to study turbulence transition of three-dimensional pipe flow.

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