一様流中に直角に噴出した噴流の拡散 : 第1報,画像処理を加えた可視化法による速度ベクトルと濃度分布の同時測定法

概要

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A new method that can measure velocity and concentration profile simultaneously has been developed using computer aided flow visualization. In a water flow model, polystyrene particles only contained in a jet are used as tracers. They are illuminated by a slit beam light. This tomogram is caught by a TV camera and sent to an image processor. Velocity vectors are calculated from the path-length of the particles. The concentration profile of the jet is calculated from a brightness profile made by the addition of many instantaneous tomograms. At a high concentration region, brightness is high because there are many particles ; and at low concentration regions it is low because there are few particles.
1988-06-25