J055015 トロコイドギヤによる非ニュートン流体のポンピング機構の可視化([J05501]混相流の多次元ビジュアリゼーション～流動場の光・電磁場・超音波センシング～)

DOI Web Site

書誌事項

タイトル別名
  • J055015 Visualization of pumping principle of a Trochoid gear pump for Non-Newtonian fluids

抄録

Flow inside a Trochoid gear pump for microbubble fluids is visualized using Kalliroscope flakes to grasp the effect of adding microbubbles on the flow structure. Upon taking phase-statistics for the time serial images, average brightness and standard deviation varying with Reynolds number are obtained. At Re = 2000, the turbulence occurs due to jets of counter flow in enclosed unit. The turbulence is, however, alleviated by the addition of microbubbles: turbulent component is weakened by adding microbubbles. Critical Reynolds number for turbulent flow transition is increased by adding microbubbles. It indicates that the pump volume efficiency may be improved by keeping the laminar flow state in the enclosed unit even at higher Reynolds numbers than in single phase conditions.

収録刊行物

  • 年次大会

    年次大会 2011 (0), _J055015-1-_J055015-5, 2011

    一般社団法人 日本機械学会

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ