Implementation and evaluation of automated tetrahedral–prismatic mesh generation software

Eller, David; Tomac, Maximilian

doi:10.1016/j.cad.2015.06.010

Cited by 7 publications

(3 citation statements)

References 29 publications

(34 reference statements)

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“…Then prism mesh is generated based on surface triangular mesh. To avoid self-interaction of prism mesh elements, the technique proposed by David Eller [10] is employed. Tetrahedral mesh is then generated by using Delaunay method based on the upper most triangular surface mesh of prism layers.…”

Section: Automatic Generation Of Mesh In Inner Domainmentioning

confidence: 99%

“…Daming Feng [9] et al presented a scalable three dimensional hybrid parallel Delaunay image-to-mesh conversion algorithm (PDR.PODM) for distributed shared memory architectures. David Eller [10] combines the Delaunay-based tetrahedral mesh generator TETGEN and a novel technique for creation of a prismatic layer together, thus an open source implementation of an efficient mesh generation procedure for hybrid prismatictetrahedral meshes intended for use in Reynolds-averaged Navier-Stokes solutions is developed.…”

Section: Introductionmentioning

confidence: 99%

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Automatic Generation of CFD Mesh for Mountainous Regions

Dang¹,

Zhang²,

Dang³

2017

2017 2nd International Conference on Mechatronics and Information Technology (ICMIT 2017)

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Abstract:Wind resistant design of ultra-high voltage transmission lines is greatly influenced by wind flow characteristics of complex terrains in mountainous regions. To obtain wind flow files over undulating hills with complex shapes and different elevations, an automatic mesh generation software is designed and developed. First, the elevation data is obtained from Aster GDEM V2 of NASA. Then geometric surfaces are generated by using continuous and smooth connection technique. Next, accounting for the demands of different wind directions, the CFD model is designed to be consisted of inner rotational region and outer fixed region, and flow data is exchanged at these two domain interfaces. Then, mixed prism/tetrahedron mesh is generated for inner rotational region. Last, the height parameters at the interface boundary of inner rotational region is copied to the outer fixed region, and fully hexahedral mesh is generated. The generated meshes of these two different regions are written in the ".cas" data format of fluent software, respectively, hence generality of data format is guaranteed. By checking the grids by using fluent software, it is showed that, the automatically generated mesh satisfies the demands for CFD simulations.

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Section: Automatic Generation Of Mesh In Inner Domainmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Automatic Generation of CFD Mesh for Mountainous Regions

Dang¹,

Zhang²,

Dang³

2017

2017 2nd International Conference on Mechatronics and Information Technology (ICMIT 2017)

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“…Indirect methods [24 , 25] were proposed to convert Delaunay triangular meshes into quadrilateral meshes by combining adjacent pairs of triangles. Constrained triangulated surfaces can be used to mesh a three-dimensional geological model by using a series of tetrahedral meshes [26] , [27] , [28] .…”

Section: Introductionmentioning

confidence: 99%

Method for generating high-quality tetrahedral meshes of geological models by utilizing CGAL

Wang

Mei

2020

MethodsX

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High-quality computational meshes are crucial in the analysis of displacements and stabilities of rock and soil masses. In this paper, we present a method for generating high-quality tetrahedral meshes of geological models to be used in stability analyses of rock and soil masses. The method is implemented by utilizing the Computational Geometry Algorithms Library (CGAL). The input is a geological model consisting of triangulated surfaces, and the output is a high-quality tetrahedral mesh of the geological model. To demonstrate the effectiveness of the presented method, we apply it to generate a series of computational meshes of geological model, and we then analyse the stabilities of the rock and soil slopes on the basis of the generated tetrahedral mesh models. The applications demonstrate the effectiveness and practicability of the present method. A method for generating high-quality tetrahedral meshes of geological models is presented. We evaluate the quality of the tetrahedral mesh of geological model using four metrics. Three applications demonstrate the effectiveness and practicability of the presented method.

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