NI Bao-yu, ZHANG A-man, YAO Xiong-liang, WANG Bin. Numerical Simulation of Trajectory and Deformation of a Bubble in a Tip Vortex[J]. Applied Mathematics and Mechanics, 2012, 33(6): 663-677. doi: 10.3879/j.issn.1000-0887.2012.06.003
Citation: NI Bao-yu, ZHANG A-man, YAO Xiong-liang, WANG Bin. Numerical Simulation of Trajectory and Deformation of a Bubble in a Tip Vortex[J]. Applied Mathematics and Mechanics, 2012, 33(6): 663-677. doi: 10.3879/j.issn.1000-0887.2012.06.003

Numerical Simulation of Trajectory and Deformation of a Bubble in a Tip Vortex

doi: 10.3879/j.issn.1000-0887.2012.06.003
  • Received Date: 2011-06-15
  • Rev Recd Date: 2012-03-01
  • Publish Date: 2012-06-15
  • According to the behavior of a bubble in the ship wake flow, the numerical simulation was divided into two stages: quasi-spherical motion and non-spherical motion, based on whether the bubble was captured by the vortex or not. Oneway coupled particle tracking method (PTM) and boundary element method (BEM) were adopted to simulate these two stages respectively. Meanwhile, the initial condition of the second stage was taken as the output of the first one and the whole simulation was connected and completed therefore. Based on the numerical results and experimental data published, the cavitation inception was studied and the wake bubble was tracked. Besides, the split of the bubble captured by the vortex and the following sub-bubbles were simulated, including the motion, deformation and collapse as well. It is aimed that the results would provide some insight into the control on wake bubbles and optimization of the wake flow.
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