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Modeling and Simulation of Axisymmetric Swirl Flow | FEATool

Modeling and Simulation of Axisymmetric Swirling Flows

Fluid Flow Simulations with Swirl Effects Fluid flows with swirl effects can occur in rotationally symmetric geometries where the azimuthal or angular velocity component is non-zero. In this case one must solve the fully three-dimensional Navier-Stokes equations. However, due to the assumption that azimuthal variations …

FEM Euler Beam Modeling and Simulation in Matlab with FEATool Multiphysics

Euler-Bernoulli Beam - FEATool Modeling and Implementation Example

This post will discuss how to implement and model elastic deformations of simple beams with FEATool Multiphysics. Although also available as a pre-defined physics mode and GUI option, beams and truss structures can also be implemented and accurately simulated with slight extension of the available FEM Matlab functions …

Matlab Modeling and FEM Simulation of Heat Induced Stress

Multiphysics Modeling of Heat Induced Stress in a Brake Disk

This tutorial illustrates how to couple a heat transfer model with linear elasticity by manually defining the multiphysics equations with the FEATool PDE syntax. The custom model examines how temperature rise in a brake disk under braking results in heat induced displacements with resulting increased stresses and …

Custom Multiphysics Equations and the Weak PDE Equation Syntax

Custom Equations and the Weak PDE Formulation Equation Syntax

The following post further examines PDE equation parsing and specifying custom equations in FEATool. Furthermore, a simple parametric heat transfer model will be shown and set up as a custom PDE equation, suitable for both the Matlab command line and m-script file modeling. Stationary heat transfer by conduction and …

Working with the Matlab FEM Finite Element Simulation Toolbox FEATool

Different Ways of Working with FEATool and FEM Simulations

FEATool Multiphysics is unique in that it allows several different ways for users to work with FEM modeling and simulation. The whole spectrum from using the high-level graphical user interface down to low-level access of the fundamental matrices of the underlying finite element FEM discretization is possible. On top …

Implementing Custom User Defined FEM Shape Functions in FEATool Multiphysics

Implementing Custom and User Defined Finite Element Shape and Basis Functions

FEATool has been designed with flexibility and user customization in mind allowing for solving custom equations, calling external solvers, grid generators, and post processing tools, and allowing for both Matlab and Octave m-script as well as GUI based modeling. This post shows how to easily define custom finite …

Custom FEM and PDE Equations with FEATool Multiphysics

Modeling with Custom Equations in the FEATool GUI

FEATool Multiphysics features an equation parser which allows users to very easily implement and simulate custom systems of equations. The goal as always with FEATool is to make it as easy as possible, the parser can therefore interpret equations written almost as one would on paper. For example a two dimensional …