DETERMINISTIC CHAOS ANALYSIS OF PARTICLE DYNAMICS IN THREE-PHASE SYSTEMS

この論文にアクセスする

この論文をさがす

著者

抄録

The instantaneous fluctuating velocities of particles acquired in three different flow regions of three-phase systems were measured by direct visualization. The local dynamics of particles were characterized by the deterministic chaos analysis of particle velocity fluctuations in terms of the correlation dimension obtained based on the time-delay embedding theorem. The results show that particles in the stable wake region exhibit highly chaotic velocity fluctuations with large correlation dimensions in spite of the apparently smooth trajectories with low fractal dimensions determined based on the box-counting method. In large particle systems the self-induced particle motion due to eddy shedding was found to be significant, resulting in an increase in correlation dimension with particle size. A sudden change in the correlation dimension was found to occur at the superficial gas velocity corresponding to the transition from the homogeneous bubbly flow to churn-turbulent flow regime.

収録刊行物

  • Journal of chemical engineering of Japan

    Journal of chemical engineering of Japan 29(4), 675-682, 1996-08-30

    The Society of Chemical Engineers, Japan

参考文献:  13件中 1-13件 を表示

被引用文献:  2件中 1-2件 を表示

各種コード

  • NII論文ID(NAID)
    10003815034
  • NII書誌ID(NCID)
    AA00709658
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    00219592
  • データ提供元
    CJP書誌  CJP引用  J-STAGE 
ページトップへ