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Mesh generation is deceptively difficult: it is easy for humans to see how to create a mesh of a given object, but difficult to program a computer to make good decisions for arbitrary input a priori. There is an infinite variety of geometry found in nature and man-made objects. Many mesh generation researchers were first users of meshes.
mesh generation: Built-in meshing miniapps and target-matrix mesh optimization experimental in any dimension + predefined shapes + Extrusion. external mesh generators via mesh exchange files, internally generated meshes for simple shapes, internal interfaces to gmsh Limited own meshing capabilities with ElmerGrid and netgen/tetgen APIs.
Gmsh is a finite-element mesh generator developed by Christophe Geuzaine and Jean-François Remacle. Released under the GNU General Public License, Gmsh is free software.. Gmsh contains 4 modules: for geometry description, meshing, solving and post-processing.
It is known that automatic element mesh generation techniques at this stage have become commonly used tools for the analysis of complex real-world models. [2] With FEM and BEM increasing in popularity comes the incentive to improve automatic meshing algorithms.
manual, or can import other mesh formats FEM: General purpose, includes 2D and 3D magnetics solvers, both static and harmonic. 3D solver is based on the Whitney AV formulation of Maxwell's equations. VSimEM: Commercial Yes Yes Yes Yes Yes Automatic, variable mesh FDTD, PIC, finite volume
FEATool Multiphysics is a fully integrated physics and PDE simulation environment where the modeling process is subdivided into six steps; preprocessing (CAD and geometry modeling), mesh and grid generation, physics and PDE specification, boundary condition specification, solution, and postprocessing and visualization.
Image-based meshing is the automated process of creating computer models for computational fluid dynamics (CFD) and finite element analysis (FEA) from 3D image data (such as magnetic resonance imaging (MRI), computed tomography (CT) or microtomography).
CalculiX is a free and open-source finite-element analysis application that uses an input format similar to Abaqus. It has an implicit and explicit solver (CCX) written by Guido Dhondt and a pre- and post-processor (CGX) written by Klaus Wittig. [1] The original software was written for the Linux [2] operating system.