Improvements in the reliability and element quality of parallel tetrahedral mesh generation

Authors

  • Jianjun Chen,

    1. Center for Engineering and Scientific Computation, Zhejiang University, Hangzhou, China
    2. School of Aeronautics and Astronautics, Zhejiang University, Hangzhou, China
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  • Dawei Zhao,

    1. Center for Engineering and Scientific Computation, Zhejiang University, Hangzhou, China
    2. School of Aeronautics and Astronautics, Zhejiang University, Hangzhou, China
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  • Zhengge Huang,

    Corresponding author
    1. School of Aeronautics and Astronautics, Zhejiang University, Hangzhou, China
    • Center for Engineering and Scientific Computation, Zhejiang University, Hangzhou, China
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  • Yao Zheng,

    1. Center for Engineering and Scientific Computation, Zhejiang University, Hangzhou, China
    2. School of Aeronautics and Astronautics, Zhejiang University, Hangzhou, China
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  • Desheng Wang

    1. Division of Mathematical Sciences, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, Singapore
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Zhengge Huang, School of Aeronautics and Astronautics, Zhejiang University, Hangzhou 310027, China.

E-mail: zhenggehuang@zju.edu.cn

SUMMARY

The paper presents a parallel tetrahedral mesh generation approach based on recursive bidivisions using triangular surfaces. Research was conducted for addressing issues concerning mesh generation reliability and element quality. A novel procedure employing local modification techniques is proposed for repairing the intersecting interdomain mesh instead of directly repeating the bidivision procedure, which improves the robustness of the complete meshing procedure significantly. In addition, a new parallel quality improvement scheme is suggested for optimizing the distributed volume meshes. The scheme is free of any communication cost and highly efficient. Finally, mesh experiments of hundreds of millions of elements are performed to demonstrate the reliability, effectiveness and efficiency of the proposed method and its potential applications to large-scale simulations of complex aerodynamics models. Copyright © 2012 John Wiley & Sons, Ltd.

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