交差管内の流況特性解析

概要

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Three kinds of experiments are conducted to determine the mechanics of flow inside two intersecting square ducts: flow visualization by means of dye injection, velocity measurement using laser Doppler anemometry, and pressure measurement using a piezometer. The angle of intersection and Reynolds number are varied. The geometrical dividing line in the intersection zone of the two ducts forms a flow divider separating the flow network into two independent, symmetrical flow units. Each flow unit constitutes a curved passage with a "radius of curvature" whose magnitude varies with the angle of intersection. Hence, the secondary effects prevail in each unit, resulting in complete flow mixing. The mechanisms disclosed by the flow visualization and LDV methods are supported by the quantative results from the piezometer measurements.
福山大学の論文