20902 高アスペクト比矩形断面を持つ対称分岐Y字流路内流れ(流体工学・流体機器,一般講演)

概要

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A flow in a channel, which consists of an introduction channel and two symmetrically bifurcated channels having high aspect ratio rectangular cross-sectional areas, was analyzed by direct numerical simulation. The introduction channel is expanded in the bifurcation direction at the bifurcation point, where a flow in its direction is generated. As the result, the mainstream profile in the introduction channel varies; the velocity near the sidewall gains and the velocity at the center is reduced. In accordance with the reduction rate of the velocity at the channel center, the region, in which the bifurcated channels affect the flow in the introduction channel, can be determined. Each flow in the bifurcated channels resumes the fully developed profile downstream.
社団法人日本機械学会の論文
2009-03-05