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openCFS User Documentation

Pre-Processors

openCFS User Documentation

openCFS
History
Installation
Installation
- Overview
- Pre-Processors Pre-Processors
  Table of contents
  - Gmsh
  - cubit / trelis
- XML Editors
- openCFS
- ParaView Plugin
PDE Explanations
PDE Explanations
- Singlefield
  Singlefield
- Coupledfield
  Coupledfield
- Optimization / Inverse Problems
  Optimization / Inverse Problems
  - InverseSourceLocalization
XML Explanations
XML Explanations
- XML
PostProcessing
PostProcessing
- ParaView
  ParaView
  - Overview
  - Common Tasks
- Postprocessing with Python
  Postprocessing with Python
  - Postprocessing with Python - 1
  - Postprocessing with Python - 2
Features
Features
- Non-Conforming Interfaces
- Rotating Interfaces
- Perfectly Matched Layer
- Absorbing Boundary Condition
- Math Expressions
- Results at specific points
- Defining coordinate systems
- External Eigensolver
- External Solver
- Field Data Pre/Postprocessing
  Field Data Pre/Postprocessing
  - General Information
  - Data Input/Output
  - Field Interpolators
    Field Interpolators
    
    Conservative Interpolators
    
    Radial Basis Functions
    
    FE Based
    
    Nearest Neighbour
    
    Cell2Node and Node2Cell
  - Aeroaocustic Source Terms
    Aeroaocustic Source Terms
    
    Lamb Vector
    
    Lighthill Source Term
    
    Lighthill Source Term Vector
    
    Time Derivative
  - Synthetic Sources
    Synthetic Sources
    
    SNGR
  - Data Processing
    Data Processing
    
    Curl
    
    Divergence
    
    Gradient
    
    TimeMean
    
    FIR
    
    Temporal Blending
    
    Volume Multiplication
  - FAQ
Tutorials
Tutorials
- AnalysisWorkflow
- Analysis-types
- Thermal-Mechanic Coupling
- Piezoelectric Unit-Cube
- Electrostatic Capacitor
- Acoustics Cylindrical Wave
- Mechanics-Acoustics Coupled Eigenvalue Problem
- System Matrix Export
- Magnet
- Magnetic-Mechanic Coupling
- Stokes Boundary Layer
- Scripting
  Scripting
- Meshing
  Meshing
Applications
Applications
- SingleField
  SingleField
  - Acoustics
    Acoustics
    
    Sound-Barrier
    
    MPP Muffler
  - Mechanics
    Mechanics
    
    Cantilever
    
    1D Oscillator with External Eigensolver
    
    Model Order Reduction with External Solver
- CoupledField
  CoupledField
  - HeatMech
    HeatMech
    
    Heat sink
  - Aeroacoustics
    Aeroacoustics
    
    Cylinder in a Crossflow
    
    Human Phonation
  - WaterWaveMech
    WaterWaveMech
    
    Sloshing in a Glass of Water
How to Contribute
How to Contribute
- Overview
- Workflow for small contributions
  Workflow for small contributions
  - Contribution over Browser
- Workflow for big contributions
  Workflow for big contributions
  - Advanced Contribution

Installing Pre-Processors for openCFS¶

Like many FE codes openCFS relies on external tools to provide meshes for the analysis. openCFS can read various mesh formats. A few selected software choices are given in the following.

Gmsh¶

Gmsh is an open source 3D finite element mesh generator with a built-in CAD engine and post-processor. It is available for all common operating systems: downloaded or install it directly via your package manager on Linux.

cubit / trelis¶

Coreform Cubit (formerly trelis) is a powerful mesh generator including geometry modelling and import features. It is available for Windows, MacOS and Linux. There is a free version available: Coreform Cubit Learn.

To get started: 1. download Coreform-Cubit for your platform 2. install the software 3. enter your licensing information on the first start. For Coreform Cubit Learn you will obtain a product-key for a node-locked license after you register (detailed activation instructions)