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As general purpose finite element analysis software, WELSIM contains tons of features those allow you to conduct many simulation studies.


Specification Description
Operaton system Microsoft Windows 10/11, 64-bit;
Linux: Ubuntu 16.04 LTS, CentOS 7, Fedora 27 and higher versions, 64-bit;
3D rendering driver: OpenGL 3.2 or higher
Physical memory At least 4 GB, and 8 GB and higher is recommended
Geometry modules Imported geometry formats: STEP, IGES, STL
Built-in geometry generation: Box, Cylinder, Sphere, Plane, Line, Circle, Vertex
Boolean operations: Union, Intersection, Cut
Supported automatic mesh Tet10, Tet4, Tri6, Tri3
  • User-defined results: deformation, rotation, strain, stress, reaction force, reaction moment, etc.
  • Archive file: file with suffix "wsdb" and the associated folder (same file name).
  • Export mesh formats: UNV, MFEM, SU2, VTK.
  • Export result formats: VTK, Tecplot, Plain Text.
  • Export solver scripts: FrontISTR, OpenRadioss, MFEM, etc.


Structural analysis Description
Types Static, transient, and modal
Materials Isotropic elastic, hyper-elastic, plastic, visco-elastic, and creep
Deformation types Small, and finite
Contact types bonded, frictionless, and frictional; small and finite sliding
Boundary conditions constraints, displacement, force, pressure, velocity, acceleration
Body conditions body force, acceleration, standard earth gravity, rotational velocity
Results deformations, stresses, strains, velocity, acceleration
Probe results reaction force (total, x, y, z)
  • Multi-body analysis.
  • Multi-step quasi-static analysis.
  • Nonlinear materials.
  • Contact analysis.
  • Implicit/Explicit dynamics.


Thermal analysis Description
Types Static, and transient
Materials linear and nonlinear
Initial conditions Initial temperature
Boundary conditions temperature, convection, radiation, heat flux, heat flow, perfectly insulated
Body conditions Internal heat generation
Results temperature
  • Multi-body analysis.
  • Temperature-dependent nonlinear material.
  • Orthotropic thermal conductivity material.
  • Heat flux results.

Computational Fluid Dynamics (CFD)

Fluid analysis Description
Types 2D Static
Boundary conditions wall, inlet, outlet, pressure, velocity, temperature, convection, heat flux
Results velocity, pressure, mass density, pressure coefficient, mach number, energy
  • 2D incompressible static analysis.
  • 3D incompressible static analysis.
  • 2D compressible dynamic analysis.
  • 3D compressible dynamic analysis.


Electromagnetic analysis Description
Types Electrostatic, and magnetostatic
Materials linear
Boundary conditions ground, voltage, symmetry, zero charge, surface charge density, electric displacement, insulting, magnetic vector potential, magnetic flux density
Results voltage, electric field, electric displacement, magnetic vector potential, magnetic flux density, magnetic field, energy density
  • Vector result display.
  • Multi-body analysis.
  • Nonlinear materials.

Need more features?

Feel free to send questions, comments, requests, bug reports, and success stories. Asking for a new feature usually results in adding the request to the TODO list or, if it already is in the list, in assigning higher priority to it.