TS-32 The Interrelated Structure between the Particle Motion and the Vortices in Gas-Particle Two-Phase Flows(Session B-3: Advanced Numerical Analysis of Cascade)

  • WU Wenquan
    Department of Power Engineering, University of Shanghai for Science and Technology
  • HUANG Yuandong
    Department of Power Engineering, University of Shanghai for Science and Technology

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説明

We present a numerical investigation on the two-dimensional, dilute gas-particle two-phase flows past a circular cylinder at high Reynolds number with one-way coupling model. Here we apply the Discrete Vortex Method (DVM) to compute the unsteady and unstable gas flow with massive separation and adopt a Lagrangian approach to simulate the particle notion. The results clearly reveal that the very large size particles (St>>1) are less affected by the vortices ; the very small size particles (St<<1) follow the streamlines of fluid, as a single phase fluid flow ; while the general intermediate size particles (St〜O(1)) are separated from the gas-particle mixture, of which motion is obviously influenced by the vortices-the particles move toward the vortices region in the wake, and finally concentrate near the vortices. Based upon the above numerical experiments, a fine interrelated structure between the particle motion and the vortices is proposed.

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詳細情報 詳細情報について

  • CRID
    1573668927098656768
  • NII論文ID
    110006692256
  • NII書誌ID
    AA12007658
  • 本文言語コード
    en
  • データソース種別
    • CiNii Articles

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