Research on Incompressible Smoothed Particle Hydrodynamics-based Constraint Revolving Moving Boundary Problem
Based on the incompressible smoothed particle hydrodynamics(ISPH) method, one constraint moving boundary problem in screw extrusion has been investigated, and the program is written in FORTRAN. The dummy particles are used to treat the moving boundary. A fixed boundary model is also simulated. The t...
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| Veröffentlicht in: | Ji xie gong cheng xue bao 2012-02, Vol.48 (4), p.32-39 |
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| container_title | Ji xie gong cheng xue bao |
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| creator | Dong, Tianwen Jiang, Shunliang Huang, Xingyuan Liu, Hesheng |
| description | Based on the incompressible smoothed particle hydrodynamics(ISPH) method, one constraint moving boundary problem in screw extrusion has been investigated, and the program is written in FORTRAN. The dummy particles are used to treat the moving boundary. A fixed boundary model is also simulated. The tensile instability is avoided by setting a reference pressure. Through comparing the results separately produced by the moving boundary model, the fixed boundary model and the commercial software FLUENT, it has been shown that the boundary treatment method is simple and effective, the algorithm is accurate and fast if an appropriate resolution is selected and the high order derivable kernel function could give a better result. It laid the foundation for the simulating of the more complex 3D model. It has something referential value for the research on moving boundary problems in various areas. copyright 2012 Journal of Mechanical Engineering. |
| doi_str_mv | 10.3901/JME.2012.04.032 |
| format | Article |
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The dummy particles are used to treat the moving boundary. A fixed boundary model is also simulated. The tensile instability is avoided by setting a reference pressure. Through comparing the results separately produced by the moving boundary model, the fixed boundary model and the commercial software FLUENT, it has been shown that the boundary treatment method is simple and effective, the algorithm is accurate and fast if an appropriate resolution is selected and the high order derivable kernel function could give a better result. It laid the foundation for the simulating of the more complex 3D model. 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The dummy particles are used to treat the moving boundary. A fixed boundary model is also simulated. The tensile instability is avoided by setting a reference pressure. Through comparing the results separately produced by the moving boundary model, the fixed boundary model and the commercial software FLUENT, it has been shown that the boundary treatment method is simple and effective, the algorithm is accurate and fast if an appropriate resolution is selected and the high order derivable kernel function could give a better result. It laid the foundation for the simulating of the more complex 3D model. 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| ispartof | Ji xie gong cheng xue bao, 2012-02, Vol.48 (4), p.32-39 |
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| subjects | Boundaries Computer programs Computer simulation Extrusion FORTRAN Mathematical analysis Mechanical engineering Three dimensional models |
| title | Research on Incompressible Smoothed Particle Hydrodynamics-based Constraint Revolving Moving Boundary Problem |
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