S055021 90度ベンド内の脈動乱流に関する実験的研究([S055-02]内部流れ(2))

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タイトル別名
  • S055021 Experimental Investigation on Pulsating Turbulent Flow in a 90-degree Bend

抄録

An experimental investigation was conducted of the pulsating turbulent flow through a 90-degree bend with a circular cross section. The experiments were carried out under the conditions of Womersley number α=20, mean Reynolds number Re_<ta>=20000 and oscillatory Reynolds number Re_<os>=10000 (the flow rate ratio η=0.5). Time-dependent wall static pressure and axial and secondary flow velocities were measured at several longitudinal stations and the distributions were illustrated for representative phases. The distributions of the phase-averaged velocity are very different from those for steady flow. Furthermore, they show complex changes along the tube axis.

収録刊行物

  • 年次大会

    年次大会 2013 (0), _S055021-1-_S055021-5, 2013

    一般社団法人 日本機械学会

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