OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) · 1996 · 13 citations · 0 references
Hexahedral Element MeshesEngineeringGeometryMechanical EngineeringGeometry GenerationComputer-aided DesignQuad-/octree Data StructureStructural OptimizationComputational MechanicsData StructureMesh OptimizationComputational GeometryGeometry ProcessingGeometric ModelingComputer EngineeringUnstructured Mesh GenerationNew AlgorithmAutomatic Geometry-adaptive GenerationNatural SciencesMesh ReductionStructural MechanicsSolid Modeling
A new algorithm for meshing arbitrary geometries with quadrilateral or hexahedral elements is presented. Based on the Quad- or Octree representation of the object an initial mesh that lies entirely inside the geometry is created and then connected with the boundary. We first describe the modified construction technique for the Quadtree (2-D) and the Octree, (3-D) data structure that allows local variations in mesh density depending on geometrical features and/or numerical needs. Then we focus on the process of making a conforming mesh out of the Quad-/Octree data structure that can be used for the meshing of the boundary. Finally some examples are resented.