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Smooth anisotropic sources with application to three-dimensional surface mesh generation

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Abstract

Isotropic sources are extended to take anisotropy into account in order to obtain a smooth anisotropic sizing field for anisotropic mesh generation. Different types of anisotropic sources are described to represent boundary layers on surfaces and in volume that guarantee a smooth anisotropic field. This allows to us resolve multiple boundary layer intersections properly and naturally provides a smooth transition between the anisotropic boundary layer sizing and the isotropic region. Furthermore, the interaction between a smooth anisotropic sizing field and curvature is studied, and estimates of the tangential size spacing are provided for first and second order approximation of the geometry to ensure smoothness of the sizing field. It is also shown that, in order to get a smooth size variation, volumetric and surface meshing can not be decoupled. The filtering of the sources in order to obtain a computationally efficient method is described. Numerical examples demonstrate our method.

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Acknowledgments

This work was partly supported by the DoD HPCMP CREATE Program. The authors would like to thank the reviewers for substantially improving the presentation of this article.

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Authors and Affiliations

  1. Sotera Defense Solutions, 1501 Farm Credit Drive, Suite 2300, McLean, VA, 22102-5011, USA

    R. Aubry, K. Karamete & E. Mestreau

  2. Naval Research Laboratory, Code 7130, 4555 Overlook Ave SW, Washington DC, 20375, USA

    S. Dey

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  1. R. Aubry
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  2. S. Dey
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  3. K. Karamete
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  4. E. Mestreau
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Correspondence to R. Aubry.

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Aubry, R., Dey, S., Karamete, K. et al. Smooth anisotropic sources with application to three-dimensional surface mesh generation. Engineering with Computers 32, 313–330 (2016). https://doi.org/10.1007/s00366-015-0420-3

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