Altair AcuSolve
Altair AcuSolve

2020.1

  1. Home
  2. AcuConsole Mesh Generation Manual

    Instruction of the mesh generation capability in AcuConsole, a GUI based pre-processor for AcuSolve.

  3. Volume Mesh Attributes

    Every geometric model in AcuConsole contains one or more volume groups. The pipe example model has one volume group called fluid with one geometric region.

  • What's New
  • Get Started
  • Tutorials
  • AcuSolve Training Manual
  • AcuSolve Validation Manual
  • AcuSolve Command Reference Manual
  • AcuSolve Programs Reference Manual
  • AcuSolve User-Defined Functions Manual
  • AcuConsole Mesh Generation Manual
  • AcuConsole Customization Manual
  • AcuTrace Command Reference Manual
  • AcuTrace User-Defined Functions Manual
  • AcuFieldView User Guide
  • AcuReport Reference Manual
  • AcuSolve Surface Processing
Index
Altair AcuSolve

2020.1

Altair AcuSolve
  • What's New

    View new features for AcuSolve 2020.1.

  • Get Started

    AcuSolve is a leading general purpose CFD solver that is capable of solving the most demanding industrial and scientific applications.

  • Tutorials

    Discover AcuSolve functionality with interactive tutorials.

  • AcuSolve Training Manual

    Introduction of background knowledge regarding flow physics and CFD as well as detailed information about the use of AcuSolve and what specific options do.

  • AcuSolve Validation Manual

    Collection of AcuSolve simulation cases for which results are compared against analytical or experimental results to demonstrate the accuracy of AcuSolve results.

  • AcuSolve Command Reference Manual

    AcuSolve command descriptions and corresponding examples.

  • AcuSolve Programs Reference Manual

    AcuSolve utility programs covering preparatory and post-processing as well as user-defined functions and utility scripts.

  • AcuSolve User-Defined Functions Manual

    Customization of AcuSolve allowing you to customize certain capabilities of the solver.

  • AcuConsole Mesh Generation Manual

    Instruction of the mesh generation capability in AcuConsole, a GUI based pre-processor for AcuSolve.

    • Setting Mesh Attributes

      Mesh attributes control various aspects of the mesh generation process, including mesh size. Mesh attributes can be set on a global (whole model) and/or local (model entity) basis.

    • Overview of Meshing Process

      AcuMeshSim is a standalone C++ program. It can be run from the command line, but is more often run directly from AcuConsole.

    • Overview of Mesh Controls

      Mesh controls are used to control the size and characteristics of the mesh in different areas of the model.

    • Mesh Size

      Mesh size can be roughly equated to the edge length of the elements generated by the mesh generator.

    • Curvature Meshing

      Curvature meshing attributes are extremely useful for capturing the curvature in the model during mesh generation.

    • Periodic Meshing

      Periodic boundary conditions are used in AcuSolve when only a subset of the full flow domain is simulated.

    • Extrusion Meshing

      In certain simulations the flow domain may have a very high aspect ratio.

    • Zone Mesh Attributes

      Mesh size can also be specified as a function of location. Geometric shapes such as spheres, boxes and cylinders can be drawn and mesh sizes are specified for the volume enclosing these Zone Mesh Attributes.

    • Global Mesh Attributes

      The Global Mesh Attributes represent mesh settings that are applied to the entire model. Additionally, the size specified in this panel is used as the global mesh length scale that is used in the octree method when evaluating all subsequent mesh sizes.

    • Mesh Process Attributes

      All of the mesh features in this section are advanced, and in most cases you do not need to change any of them.

    • Volume Mesh Attributes

      Every geometric model in AcuConsole contains one or more volume groups. The pipe example model has one volume group called fluid with one geometric region.

      • No Mesh

        This option tells the mesher not to mesh the volume regions in this group. Note that any surfaces attached to the volume that are shared by other active volume groups will still be meshed.

      • Absolute Mesh Size

        If the Mesh size type is set to Absolute, then the Absolute mesh size value needs to be provided.

      • Relative Mesh Size

        If the Mesh size type is set to Relative, Relative mesh size needs to be provided. The resulting element size is computed by multiplying the relative mesh size with the maximum edge length of the bounding box of the individual regions in a volume group.

      • Absolute Expression

        Mesh sizes for volumes can be specified as expressions. To specify an Absolute Expression, set the Mesh size type to Absolute Expression.

      • Relative Expression

        To specify a Relative Expression, set the Mesh size type to Relative Expression.

      • Absolute Anisotropic Mesh Size

        This option allows you to enter an absolute size and a tensor that defines the orientation of the anisotropy.

      • Relative Anisotropic Mesh Size

        This option allows you to enter a relative size and a tensor that defines the orientation of the anisotropy.

      • None

        This setting tells the mesher to apply no mesh controls to the volume group. Note that the volume may still inherit mesh controls from the global level and surfaces may inherit controls from adjacent volumes.

      • Curvature Refinement Parameters

        Turning On the Curvature refinement parameters for the volume groups gives access to the Curvature angle and Curvature mesh size factor settings.

    • Surface Mesh Attributes

      Once the geometry is imported into AcuConsole, it will have one or more surface groups. Each of the surface groups could have one or more geometric faces associated with it.

    • Periodic Mesh Attributes

      To properly set periodic boundary conditions in AcuSolve, the mesh nodes on periodic faces must match after applying the periodic transformation.

    • Extrusion Mesh Attributes

      Extrusion meshing is a technique in which structured mesh is created in volume and on surface entities.

    • Zone Mesh Attributes

      The Zone Mesh Attributes panel provides a method for you to set mesh sizes in regions that are independent of the CAD model.

    • Edge Mesh Attributes

      An edge mesh specifies mesh attributes along a selected edge of a model.

    • Mesh Generation Process

      Generating a mesh using AcuConsole requires you to set up the mesh attributes and open the Launch AcuMeshSim dialog by clicking Tools > Generate Mesh.

    • Appendix

  • AcuConsole Customization Manual

    Customization of AcuConsole allowing you to improve your particular workflow.

  • AcuTrace Command Reference Manual

    Commands of AcuTrace, a particle tracer that runs as a post-processor to or a co-processor with AcuSolve.

  • AcuTrace User-Defined Functions Manual

    Instructions to define additional solution quantities of AcuTrace called user equations.

  • AcuFieldView User Guide

    Usage of AcuFieldView, an OEM version of Intelligent Light’s FieldView post-processing software.

  • AcuReport Reference Manual

    Instruction of the AcuReport tool, a standalone post-processor batch tool used to generate a report from an AcuSolve solution database.

  • AcuSolve Surface Processing

View All Altair HyperWorks Help

Altair AcuSolve
Altair AcuSolve

2020.1

  1. Home
  2. AcuConsole Mesh Generation Manual

    Instruction of the mesh generation capability in AcuConsole, a GUI based pre-processor for AcuSolve.

  3. Volume Mesh Attributes

    Every geometric model in AcuConsole contains one or more volume groups. The pipe example model has one volume group called fluid with one geometric region.

  • What's New
  • Get Started
  • Tutorials
  • AcuSolve Training Manual
  • AcuSolve Validation Manual
  • AcuSolve Command Reference Manual
  • AcuSolve Programs Reference Manual
  • AcuSolve User-Defined Functions Manual
  • AcuConsole Mesh Generation Manual
  • AcuConsole Customization Manual
  • AcuTrace Command Reference Manual
  • AcuTrace User-Defined Functions Manual
  • AcuFieldView User Guide
  • AcuReport Reference Manual
  • AcuSolve Surface Processing
Index

Volume Mesh Attributes

Every geometric model in AcuConsole contains one or more volume groups. The pipe example model has one volume group called fluid with one geometric region.

Each of these volume groups have a Mesh Attribute panel. The attributes consist of the following:
  • No mesh
  • Absolute mesh size
  • Relative mesh size
  • Absolute Expression
  • Relative Expression
  • Absolute Anisotropic mesh size
  • Relative Anisotropic mesh size
  • None
  • Curvature refinement parameters
  • No Mesh
    This option tells the mesher not to mesh the volume regions in this group. Note that any surfaces attached to the volume that are shared by other active volume groups will still be meshed.
  • Absolute Mesh Size
    If the Mesh size type is set to Absolute, then the Absolute mesh size value needs to be provided.
  • Relative Mesh Size
    If the Mesh size type is set to Relative, Relative mesh size needs to be provided. The resulting element size is computed by multiplying the relative mesh size with the maximum edge length of the bounding box of the individual regions in a volume group.
  • Absolute Expression
    Mesh sizes for volumes can be specified as expressions. To specify an Absolute Expression, set the Mesh size type to Absolute Expression.
  • Relative Expression
    To specify a Relative Expression, set the Mesh size type to Relative Expression.
  • Absolute Anisotropic Mesh Size
    This option allows you to enter an absolute size and a tensor that defines the orientation of the anisotropy.
  • Relative Anisotropic Mesh Size
    This option allows you to enter a relative size and a tensor that defines the orientation of the anisotropy.
  • None
    This setting tells the mesher to apply no mesh controls to the volume group. Note that the volume may still inherit mesh controls from the global level and surfaces may inherit controls from adjacent volumes.
  • Curvature Refinement Parameters
    Turning On the Curvature refinement parameters for the volume groups gives access to the Curvature angle and Curvature mesh size factor settings.

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