Three-dimensional automatic FDTD mesh generation on a PC

Sun, Weimin; Balanis, C.A.; Purchine, M.P.; Barber, G. C.

doi:10.1109/aps.1993.385409

Cited by 4 publications

(2 citation statements)

References 2 publications

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“…Thus, some scholars have already proposed a part of theory and approaches to convert other mesh formats into Yee cells. In 1993, W. Sun proposed a ray tracing method of 3D FDTD surface mesh generation based on triangular mesh [5]. In 1996, W. Heinrich proposed an optimal FDTD mesh generation method, which laid the foundation for the emergence of adaptive mesh, but this method could only solve the simple shape model with relatively regular shape [6].…”

Section: Introductionmentioning

confidence: 99%

An Implicit Adaptive FDTD Mesh Generation Techniquebased on Tetrahedrons

Zhang,

Xu,

Peng

et al. 2024

ACES Journal

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A novel implicit adaptive FDTD mesh generation method based on tetrahedrons is proposed in this paper. According to the vertex coordinates of tetrahedrons which make up an object, non-uniform grid lines are generated first. These grid lines are constrained by the structure of the object and follow three rules mentioned in the paper. The first rule is to find demarcation points of the object and drop grid lines on these points. The second rule is to make sure all mesh sizes are less than one-tenth of the wavelength by adding more grid lines. The last rule is to densify mesh at the fine structure of the object. Then by comparing the positional relationship between center points of Yee cells and tetrahedrons, the object can be discretized by Yee cells. Finally, numerical examples are given to verify the validity and accuracy of this novel method.

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Section: Introductionmentioning

confidence: 99%

An Implicit Adaptive FDTD Mesh Generation Techniquebased on Tetrahedrons

Zhang,

Xu,

Peng

et al. 2024

ACES Journal

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show abstract

“…Algorithms for automatic structured mesh generation have been developed since the capabilities of the FDTD method and computer hardware reached the point at which relatively complex geometries could be simulated. A selection of the techniques proposed are reported in [3], [4], [5], [6], [7], [8], [9], [10], [11]. The process of generating a cuboid structured mesh from an arbitrary model geometry consists of two main steps.…”

Section: Introductionmentioning

confidence: 99%

Structured Mesh Generation: Open-source automatic nonuniform mesh generation for FDTD simulation

Berens¹,

Flintoft

Dawson

2016

IEEE Antennas Propag. Mag.

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This article describes a cuboid structured mesh generator suitable for 3D numerical modelling using techniques such as finite-difference time-domain (FDTD) and transmission-line matrix (TLM). The mesh generator takes as its input an unstructured triangular surface mesh such as is available from many CAD systems, determines a suitable variable mesh discretisation and generates solid and surface meshes in a format suitable for import by the numerical solver. The mesher is implemented in the MATLAB language and is available as open source software.

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Graphical modeling interface for FD-TLM electromagnetic field simulation of high-speed pulse propagation in active structures

Voelker

Sentelle

Proceedings of IEEE Antennas and Propagation Society International Symposium and URSI National Radio Science Meeting

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Three-dimensional automatic FDTD mesh generation on a PC

Cited by 4 publications

References 2 publications

An Implicit Adaptive FDTD Mesh Generation Techniquebased on Tetrahedrons

An Implicit Adaptive FDTD Mesh Generation Techniquebased on Tetrahedrons

Structured Mesh Generation: Open-source automatic nonuniform mesh generation for FDTD simulation

Graphical modeling interface for FD-TLM electromagnetic field simulation of high-speed pulse propagation in active structures

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