2021.11

2 Introduction

Welcome to Coreform Cubit™, the comprehensive toolset for mesh generation. Cubit is based on technology jointly developed between Coreform and Sandia National Laboratory. Coreform adds capability and functionality to that library as well as a fully-functional user interface to produce Coreform Cubit.

Coreform Cubit is a full-featured software toolkit for robust generation of two- and three-dimensional finite element meshes (grids) and geometry preparation. Cubit’s main goal is to reduce the time to generate meshes, particularly large hex meshes of complicated, interlocking assemblies. It is a solid-modeler based preprocessor that meshes volumes and surfaces for finite element analysis and computational fluid dynamics. Mesh generation algorithms include quadrilateral and triangular paving, 2D and 3D mapping, hex sweeping and multi-sweeping, tetrahedral meshing, and various special purpose primitives. Cubit contains many algorithms for controlling and automating much of the meshing process, such as automatic scheme selection, interval matching, sweep grouping, and also includes state-of-the-art smoothing algorithms and mesh scaling.

The overall goal of Coreform Cubit is to reduce the time it takes a person to generate an analysis model. Generating meshes for complex, solid model-based geometries requires a variety of tools. Many Cubit tools are completely automatic, while others require user input. Usually, the automatic choices can be over-ridden by the user if necessary.

    2.1 How to Use This Manual

    2.2 Key Features

      2.2.1 Geometry Creation, Modification, and Healing

      2.2.2 Isogeometric analysis

      2.2.3 Non-Manifold Topology

      2.2.4 Geometry Decomposition

      2.2.5 Mesh Generation

      2.2.6 Boundary Conditions

      2.2.7 Element Types

      2.2.8 Graphics Display Capabilities

      2.2.9 Graphical User Interface

      2.2.10 Command Line Interface

    2.3 Cubit Support

    2.4 Hardware Requirements

    2.5 Trademark Notice