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Higher Order Basis Based Integral Equation Solver (HOBBIES) by Sioweng Ting, Magdalena Salazar-Palma, Weixin Zhao, Daniel Garcia Doñoro, Xunwang Zhao, T. K. Sarkar, Yu Zhang

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5

MESHING A MODEL IN HOBBIES

5.0 SUMMARY

Generating a mesh is the process by which a Higher Order Basis Based Integral Equation Solver (HOBBIES) mesh is generated from the geometry definition. In HOBBIES, all the properties assigned to geometric entities, such as domain, loading, and excitation (see Chapter 6) and so on, will be transferred to the nodes and elements of the mesh. The mesh will be used for the electromagnetic (EM) analysis at a later stage.

The meshing process is an indispensible operation before running a simulation in HOBBIES. For ease of use, HOBBIES provides automatic methods for creating meshes for structures such as Non-Uniform Rational B-Spline (NURBS) curves or surfaces. Tools to generate a user-configured mesh are also provided in HOBBIES. The mesh generation does not depend on whether layers are ON or OFF at the moment of generation, but frozen layers are not meshed if the preference (see Appendix A, the Meshing Tab under the Preferences) No mesh frozen layers is selected. Every node and element will be assigned to the layer in which the original geometrical entity was defined.

The defaults are as follows:

  • An entity is meshed if it does not belong to a higher level entity.
  • A line mesh is made of two-node elements, and a surface mesh is made of unstructured quadrilateral elements. The default for structured meshes is also quadrilateral elements.

All default elements use linear interpolations for the unknown variables. The line and quadrilateral element ...

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