Simulation on Motion of Particles in Vortex Merging Process

HUANG Hai-ming; XU Xiao-liang

doi:10.3879/j.issn.1000-0887.2010.04.005

Volume 31 Issue 4

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HUANG Hai-ming, XU Xiao-liang. Simulation on Motion of Particles in Vortex Merging Process[J]. Applied Mathematics and Mechanics, 2010, 31(4): 433-442. doi: 10.3879/j.issn.1000-0887.2010.04.005

Citation:

HUANG Hai-ming, XU Xiao-liang. Simulation on Motion of Particles in Vortex Merging Process[J]. Applied Mathematics and Mechanics, 2010, 31(4): 433-442. doi: 10.3879/j.issn.1000-0887.2010.04.005

Citation:

HUANG Hai-ming, XU Xiao-liang. Simulation on Motion of Particles in Vortex Merging Process[J]. Applied Mathematics and Mechanics, 2010, 31(4): 433-442. doi: 10.3879/j.issn.1000-0887.2010.04.005

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Simulation on Motion of Particles in Vortex Merging Process

doi: 10.3879/j.issn.1000-0887.2010.04.005

Institute of Engineering Mechanics, Beijing Jiaotong University, Beijing 100044, P. R. China

Received Date: 1900-01-01
Rev Recd Date: 2010-03-03
Publish Date: 2010-04-15

Abstract

Abstract

In two-phase flow,the vortex merging in fluences both flow evolution and particles motion.With the help of the blobs-splitting-and-merging scheme,the vortex merging was calculated by using a corrected core spreading vortex method(CC SVM);based on these,the particlesmotion in vortex merging process was calculated according to the particle kinetic model. As the results indicate,the particle traces are spiral lines,keeping the same rotation direction with the spinning vortex;the center of particles group is in agreement with that of the merged vortex;the merging tmie is determined by the circulation and initial ratio of the vortex radius and vortex centerd istance;and in a certain initial condition,a stretched particle trail is generated,which is determined by the viscosity,the relative position between particles and vortex, and the unsymm etrical circulation of the two merging vortexes.
- vortex method,
- vortex merging,
- particles motion,
- particle trail

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References(14)

References

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