Gmsh Tutorial

Contents

Gmsh is an open source 3D finite element mesh generator with a built-in CAD engine and post-processor. Optionally, it can be used as ParaGeo pre-processing tool to generate mesh and geometry data for both 2D and 3D models. For more information including the downloading of the current stable release, please visit http://gmsh.info.

INDEX

Title	Features List	Model
Usage of Gmsh for ParaGeo Geometry and Mesh Pre-processing
Gmsh_001 Introduction to Geometry and Mesh Generation	Geometry and Mesh (3D)
•Example1 Unstructured Mesh •Example2 Structured Mesh oExample2a Uniform Size oExample2b Mixed Size	•Create geometry - points, lines, surfaces, volume •Defining control parameters using Gmsh scripts •Mesh generation - unstructured, structured
•Example3 Physical Groups	•Definition of physical groups
Gmsh_002 3D Geometry and Mesh for Ex_008	Geometry and Mesh (3D)
•Gmsh Script •Conversion to ParaGeo	•Parameterise geometry in script •Define of un-faulted formations using pre-defined 3D geometry entities •Define fault plane and split formations using boolean operations •Define regions for finer mesh generation •Define physical groups for creation of Geometry_sets during conversion to ParaGeo •Export mesh to Abaqus .inp file and convert to ParaGeo .dat format