CFD Solver Benchmark and Comparison - OpenFOAM, FEniCS and FEATool
Multi-Simulation and External Solvers in FEATool With the external solver and multi-simulation interfaces, FEATool Multiphysics makes it easy to use multiple solvers which can be suitable for different classes of problems. Using more than one solver can also be very helpful in validating physics models and simulations, …
FEATool 1.8 with OpenFOAM CFD Solver Interface
FEATool Multiphysics 1.8 The FEATool Multiphysics Partial Differential Equation (PDE) and Finite Element Analysis (FEA) Simulation Toolbox version 1.8 is now available for MATLAB, featuring the following improvements and new additions. OpenFOAM CFD Solver Interface In addition to being a fully integrated FEA …
Comparison of the DistMesh, Gmsh, and Triangle Mesh Generators
Having implemented and fully integrated a uniform MATLAB mesh generation framework with FEATool Multiphysics, it is now both very easy and convenient to directly compare mesh generation codes and algorithms with each other. In the following post the DistMesh, Gmsh, and Triangle open source mesh generators are compared …
Using Mixed Robin Boundary Conditions in FEATool
Robin boundary conditions or mixed Dirichlet (prescribed value) and Neumann (flux) conditions are a third type of boundary condition that for example can be used to implement convective heat transfer and electromagnetic impedance boundary conditions. In the following it will be discussed how mixed Robin conditions are …
FEATool Multiphysics 1.7.1 Toolbox Update with Gmsh and Triangle GUI Integration
FEATool 1.7.1 Update An update to FEATool Multiphysics (v1.7.1) is now available featuring many stability, GUI, and performance improvements. Moreover, a redesigned and simplified mesh and grid generation toolbar has been introduced, including built-in support for the external Gmsh and Triangle mesh generators. New …
FEA Mesh generation in MATLAB with Gmsh
Gmsh Mesh Generator Gmsh is a very capable and cross platform stand-alone open source mesh generator for FEA and CFD applications. In addition to many built-in mesh generation algorithms, it also includes support for a variety of integrated mesh generators, such as Tetgen and Netgen, and also popular 2D and 3D CAD file …
Creating 3D Semi-Structured Grids Using Extrusion
When generating grids and meshes for fully three-dimensional structures with constant cross section in one or more directions, it is often advantageous to first create a two dimensional grid and extrude it to 3D, rather than generate a full 3D grid directly. By using the extrusion technique more control over the grid …
Parametric Structural Mechanics Study with Imported CAD Geometry
This tutorial builds on and continues the previous CAD and Gmsh file import and mesh generation tutorial. A parametric deformation and stress analysis of the imported fixed wrench and spanner CAD model will be performed with a number of different load configuration cases. The following five steps are all that is …
CAD File Import, Mesh, and Grid Generation with Gmsh
Gmsh is a popular cross platform and open source mesh generation software which supports many CAD file formats such as STEP, IGES, and STL. In addition to its own mesh generation algorithms, Gmsh also includes support for a variety of integrated mesh generators, such as Netgen, Tetgen, and Triangle. As such is it one …
Periodic Boundary Conditions and the Solver Hook Functionality
This post describes how to implement finite element FEM models with custom periodic boundary conditions in FEATool. A periodic boundary condition can be defined for opposing boundaries so that their values are linked in some defined way. The typical case for two periodic boundaries is to require them to have identical …