F-0714 円管内収縮部下流の直角合流部における流れ場の数値解析(J22-1 生体関連の熱・流体工学(1))(J22 生体関連の熱・流体工学)

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This paper investigated a flow downstream of a contraction with a branching using numerical analysis in detail. Software for calculating flow field is Star-CD programmed by finite differential method. The Investigation is carried out two points as a parameter of a flow ratio below; (1) the flow downstream of a contraction, (2) the pressure distribution. The calculation results showed that the flow ratio is greatly effected to the investigated points. Especially, as the reverse flow to the upstream is investigated using the fluid path which starts from the inlet of branching, with the increase in the flow ratio, the inlet area which generated the reverse flow is decreased. The fluid near the wall toward the contraction in the branching always reverses to the upstream. From the investigation of the wall pressure distribution on the main tube, with the increase in the flow ratio, the pressure loss caused by the flow juncture is increased.
社団法人日本機械学会の論文
2001-08-22