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Automated low-order to high-order mesh conversion

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Abstract

An algorithm is presented for the CAD-free conversion of linear unstructured meshes into curved high-order meshes, which are necessary for high-order flow simulations. The algorithm operates via three steps: (1) autonomous detection of feature curves along the mesh surface, (2) reconstruction of the surface curvature from the combination of surface node positions and feature curve positions, and (3) alignment of the mesh interior to the newly curved surface. The algorithm is implemented in our freely available cross-platform graphical software program meshCurve, which transforms existing linear meshes into high-order curved meshes

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Notes

  1. http://gmsh.info/.

  2. Download meshCurve at https://sites.google.com/site/meshcurvesoftware/.

  3. https://www.hopr-project.org/index.php/Home.

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Acknowledgements

This material is based upon work supported by NASA under Grant NNX12AK04A and also by the National Science Foundation Graduate Research Fellowship Program under Grant no. NSF0064451.

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Authors and Affiliations

  1. Department of Aerospace Engineering, The University of Kansas, Lawrence, KS, 66045, USA

    Jeremy Ims & Z. J. Wang

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  1. Jeremy Ims
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  2. Z. J. Wang
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Correspondence to Jeremy Ims.

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Ims, J., Wang, Z.J. Automated low-order to high-order mesh conversion. Engineering with Computers 35, 323–335 (2019). https://doi.org/10.1007/s00366-018-0602-x

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