Simulate with complex geometries and complex physics
Simulate with complex geometries and complex physics

Your Key Advantages From Our MESHFREE Software

New Benchmark in the Virtualization of Product and Process Design With Our Point Cloud Technology

MESHFREE offers numerous advantages that make the software a powerful and flexible solution for complex simulations. Whether for fast function integration, scalable HPC applications or supporting different hardware and operating systems – MESHFREE is designed to optimize your entire simulation process.

Learn more about the aspects that make MESHFREE unique for your application:

Benefits of the MESHFREE Software at a Glanceat a Glance
© Fraunhofer ITWM
Benefits of the MESHFREE Software at a Glance

Preprocessing

  • No Volume Mesh Requirements
    MESHFREE simplifies and shortens preprocessing by using a surface triangulation as geometric input, significantly reducing the manual effort required for 3D volume meshing compared to conventional tools..
  • Minimal Setup Time with High Automation
    MESHFREE’s scripting language minimizes setup time and supports extensive automation of simulation workflows.
  • Easy Implementation of Parameter Studies
    The input files of MESHFREE can be parameterized to a high degree, so that several simulation jobs with different input geometries or physical and numerical parameters can be executed without user interaction.

Physics

  • Excellent Treatment of Free Surfaces
    Unlike mesh-based methods that constrain the computational domain, MESHFREE naturally supports free surface flows and geometric movements.
  • From Incompressible to Compressible
    MESHFREE solves conservation equations for incompressible or compressible media, depending on the application.
  • Switch Between Lagrange and Euler
    MESHFREE allows seamless switching between the Lagrangian (moving) or Eulerian (stationary) approach or both within the same setup.
  • Modeling Complex Materials
    MESHFREE is ideal for the simulation of materials with large deformations and offers the user the flexibility to define new material models.
  • Supports Multi-Phase Flows
    Internal couplings can easily be used to model the interaction between multiple phases, based on volume-volume or surface-surface coupling as required.
  • Fluid-Structure Interaction (FSI)
    Rigid body movements due to flow forces can be handled internally. For fully deformable bodies and structures, MESHFREE offers interfaces to Finite Element solvers such as LS-DYNA and VPS.

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Modeling fluid-structure interaction (FSI) is one of the most challenging simulation tasks. The coupling of MESHFREE with LS-DYNA is already being used in industry and demonstrates its potential here using the example of an elastic flap that is bent by a targeted blast of air.

Numerics

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In fluid dynamics, a Kármán vortex street is a repeating pattern of vortices in a flow around an obstacle. Adaptive refinement strategies in MESHFREE make it possible to combine minimum calculation times with the desired accuracy.

  • Adaptive Refinement Based on Quality
    MESHFREE provides automatic local refinement strategies based on user-defined quality metrics such as maximum error limits for specific simulation quantities.
  • Numerical Convergence
    The underlying Generalized Finite Difference Method (GFDM) ensures numerical convergence, either by increasing the approximation order (p-refinement) or the resolution of the point cloud (h-refinement).
  • Higher-Order Approximations
    MESHFREE employs second-order or higher least-squares approximations in space, which reduce the approximation error to the order of magnitude h³ with discretization length h of the point cloud.
  • Exact Physical Boundary Conditions
    Boundary filling in MESHFREE ensures that points are placed exactly on the geometric boundaries, which enables accurate numerical discretization for various boundary conditions, especially for discrete Neumann or higher order operators.

Postprocessing

  • Intuitive Results Interpretation
    With its built-in postprocessing options, MESHFREE helps the user to interpret simulation results easily and efficiently.
  • Supports Common Formats
    The simulation results can be saved in EnSight, HDF5, or OBJ format, which enable postprocessing with various visualization tools such as ParaView, Animator4, and Blender.
  • Point Cloud to Geometry Mapping
    A sophisticated mapping process enables the visualization of the influence of point cloud quantities on the geometry.

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Simulations with MESHFREE offer an insight into flow processes that are difficult to achieve with experiments. A photorealistic visualization of the simulation results using Blender helps to make flow effects even more tangible.

Software

  • Rapid Feature Integration
    MESHFREE is under continuous development, with beta versions usually released every two months to ensure that new features and improvements are integrated quickly.
  • Scaling for HPC Applications
    MESHFREE is fully MPI parallelized (shared and distributed) and scales well on computing clusters.
  • Multiple Hardware and OS Support
    MESHFREE supports multiple operating systems, including Linux and Windows, and is compatible with various hardware platforms.
  • Comprehensive Online Documentation
    The software offers freely available online documentation from installation and first steps to detailed feature descriptions.
  • Active Scientific Research
    The underlying Generalized Finite Difference Method (GFDM) is under continuous scientific development – together with our research and industry partners.
MESHFREE Workflow
© Fraunhofer ITWM
MESHFREE Workflow