レーザドップラ流速計による側壁のない流体振動型ガスメータ内の流れの可視化

DOI

書誌事項

タイトル別名
  • Flow Visualization of a No-sidewall Fluidic Gas Meter by LDV.

抄録

The oscillating flow in a non-sidewall fluidic gas flowmeter was investigated. LDV measurements were carried out at 624 points in the meter and under the condition of Re=1140, evaluated using the nozzle length as the representative diameter, where the oscillating frequency was 37 Hz. The velocity variation at each point was phase locked by using pressure signal detected at the nozzle outlet. Two dimensional flow visualization was succeeded in terms of flow vector, streamlines and vorticity, and turbulent kinetic energy was also estimated in the meter. The results revealed the switching and bifurcation of nozzle jet and the vortex shedding in the wake. On the basis of the visualized flow, a model of the essential flow pattern was suggested.

収録刊行物

キーワード

詳細情報 詳細情報について

  • CRID
    1390001204620668288
  • NII論文ID
    130003443219
  • DOI
    10.3154/jvs.17.141
  • ISSN
    1884037X
    09164731
  • 本文言語コード
    ja
  • データソース種別
    • JaLC
    • Crossref
    • CiNii Articles
  • 抄録ライセンスフラグ
    使用不可

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