流れの数値解析と化学装置のモデリング　　アスペクト比の小さいテイラー・クエット流の渦発生機構と乱流遷移特性

DOI Web Site Web Site 被引用文献5件 参考文献11件

書誌事項

タイトル別名
  • Computation Transport Phenomena in Chemical Engineering. Vortex Generation and Properties of Transition to Turbulence in a Taylor-Couette Flow System with Small Aspect Ratio.
  • アスペクトヒ ノ チイサイ テイラー クエットリュウ ノ ウズ ハッセイ キコ

この論文をさがす

抄録

The generation of vortices and transitional properties to turbulent flow in a Taylor -Couette flow system with an aspect ratio of 3 were investigated in terms of the effect of the acceleration of the inner cylinder rotation speed by using numerical, electrochemical and flow-visualization techniques. The three-dimen-sional simulation based on the SMAC method clarified the generation mechanism of vortices and temporal and spatial properties in a wavy vortex flow. The electrochemical and flow-visualization techniques revealed the temporal and spatial properties in wavy, quasi-periodic wavy and weakly turbulent wavy vortex flows. Lower acceleration rates produced the two-cell primary mode, while the four-cell secondary mode was generated in the case of higher acceleration rates. In a wavy vortex flow, the single fundamental frequencies, which correspond to the passing frequencies of the travelling azimuthal waves, velocity and velocity gradient power spectra depend on the flow modes. In quasi-periodic and weakly turbulent wavy vortex flows, the temporal-spatial properties also largely depend on the cell modes. These results suggest that the geometric structure of vortex cells influences flow characteristics.

収録刊行物

被引用文献 (5)*注記

もっと見る

参考文献 (11)*注記

もっと見る

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