Flow Patterns of the Vapor-Liquid Two-Phase Flow in a Small Triangular Channel

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  • MATSUSE Yudai
    Department of Mechanical Engineering, Graduate School, Kyushu University
  • NAKATSURU Takuya
    Department of Mechanical Engineering, Graduate School, Kyushu University
  • ENOKI Koji
    Institute of Engineering, Tokyo University of Agriculture and Technology
  • MORI Hideo
    Department of Mechanical Engineering, Kyushu University
  • Keishi KARIYA
    Department of Mechanical Engineering, Kyushu University
  • HAMAMOTO Yoshinori
    Department of Mechanical Engineering, Kyushu University

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Other Title
  • 微細三角形流路における気液二相流の流動様相
  • ビサイ サンカクケイ リュウロ ニ オケル キエキ ニソウリュウ ノ リュウドウ ヨウソウ

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Description

In the present study, experiments were performed to observe vapor-liquid two-phase flow of a refrigerant R 410A in a horizontal small triangular channel with a glass tube and a high speed camera. The hydraulic diameter of glass tube was 0.82 mm. Based on the observation, flow patterns were classified into several flow regimes, and the effect of channel arrangement against gravity direction on the flow pattern was clarified. Furthermore, the effects of cross-sectional shape and flow direction were made clear by comparing with data of upward and downward flow in a triangular channel and horizontal flow in circular and rectangular channels previously obtained.

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