SIM4LIFE » FRAMEWORK » MESHER
MESHER

 Framework: MESHER

 Robust & Effective Meshing

Sim4Life offers a unique array of discretization tools, ranging from the interactive generation of geometrically adaptive rectilinear grids by ray tracing combined with robust intersection testing to Delauney, advancing front, and octree-based methods for unstructured mesh generation in FEM-based solvers. Both irregular anatomical structures and CAD-based models can be handled robustly and flexibly while preserving features.

Unstructured meshing and FEM simulation to model the neuroelectric response of complex nerves.

Adaptive, rectilinear meshes (e.g., for P-EM-FDTD, P-ACOUSTICS, P-THERMAL) can be generated interactively with excellent heuristics-based automatic grid generation and flexible tuning.

A variety of volumetric mesh tools (e.g., for P-EM-UQSP-FLOW) capable of generating high-quality element, adaptive, feature preserving, unstructured meshes from CAD data and complex anatomical models are provided.

The only surface processing tool capable of producing topologically conforming, high triangle element quality, non-(self) intersecting surface meshes from noisy segmentation data; the ideal basis for unstructured volume mesh generation.

 

 Key Features - Rectilinear Mesh

  • Adaptive, non-uniform meshing (graded)
  • Fastest high-speed grid generator, object-analysis-intelligence
  • Unique FDTD/GPU subgridding scheme (structure-adaptive)
  • Predefined/customizable grid templates (fast settings assignment)
  • New user-friendly & intuitive engine (gang axes / settings simplification)
  • Voxel connectivity check for PEC/metal connectivity verification
  • High-level automation (one-click-grid)
  • Broad variety of user-defined grid settings
  • Real-time object selective gridding
  • Geometrical analysis of solids for grid refinement
  • GUI-based selection of estimated grid size/simulation time trade-off
  • Fast 3D or 2D conformal or Yee mesh viewer
  • Region selective mesh visualization (plane, cube, etc.)
  • Fully native 64 bit support for large meshes (>> 1 billion cells)
 

 Key Features - Volumetric Mesh

  • Tetrahedral volume mesher based on VKI engine
  • Mesh import tools for third-party meshes (e.g., VTK vtu, EXODUS, NASTRAN)
  • 2D mesher to create surface meshes of complex structures
  • Local remeshing tool to adapt surface or volume meshes to improve mesh quality
  • Mesh refinement tool to refine the overall mesh or a sub-volume
  • Mesh extrusion tool to extrude 2D meshes along a trajectory into prismatic/hexahedral based elongated structures
  • Thin layer insertion tool to insert thin layers at interfaces between meshed regions
  • Robust mesh viewer
  • Delaunay approach or an Advancing Front method (for volumetric meshes)
  • Mesh quality inspector (wide range of metrics and rapid visualization of low-quality element locations requiring further processing)
 

 Key Features - Surface Mesh

  • Variety of tools for editing & preprocessing surface meshes
  • Robust conversion of small and medium-sized surface meshes to NURBS models
 

High-quality tetrahedral mesh for unstructured FEM simulation of a wireless power transfer (WPT) coils.

Solver-optimized surface meshes of a complex anatomical head model.

Multi-domain volume mesh of the electrode wrapped around nerve (Vagus Nerve Stimulation).