Video tutorial

This page contains videos, which should help new users to become familiar with Agros2D in a very convenient way. In each video, several aspects of the Agros2D software are presented.

First introductory video shows how to create a simple electrostatic problem, define its geometry, material, boundary conditions and how to use the post-processor. It also shows capabilities of built-in Python console for a simple calculation of the capacity using total energy (obtained as volume integral) or charge (obtained as surface integral). The Python console extends abilities of the Agros2D software significantly due to the possibility to include any scientific Python library.

In the second video, a heat transfer problem in a simple model of an apartment is modeled. First, a geometry is imported from a .dxf file. Than, boundary conditions and various materials (including brick, wood, glass and insulation) are defined. An analysis of heat flux through the walls of the building with and without insulation is than performed, using postprocessing tools such as 3D visualization, surface integrals, point values, Python console and possibility to draw charts, showing dependence of selected quantity on position on specified line.

In the following video, a nonlinear magnetostatic problem is solved. In this case, part of the geometry is imported from a .dxf file and than the preprocessor is used to finish it. Than, boundary conditions and material properties are defined. The nonlinear dependence of magnetic permeability on magnetic flux density for iron is loaded from a built-in material library. After that, several attempts are made to solve the problem using the Newton’s method. During the process, some of the parameters of the Newton solver (such as different approaches towards damping) are altered to obtain sufficiently accurate solution. This video also shows, how a calculation can be aborted when it looks unlikely that it would converge.

The following video shows how to use the particle tracing module. The geometry of a simple model of oscilloscope is loaded from the file. Than, materials and boundary conditions are defined for calculation of electrostatic field. Particle tracing module is shown for different settings of charge on electrodes and for different numbers of electrons.

In this video, transient analysis of heat transfer problem with time-dependent source term is presented. It is solved using time adaptivity algorithm, which takes care of time step length control. It is also shown how to control quality of the mesh. During the postprocessing phase, a video and chart showing dependence of temperature on time in a selected point are created.

The following coupled problem is more complicated, since it comprises three different fields in one calculation. Magnetic harmonic field in the proximity of the device, transient heat transfer problem in the device and thermoelastic calculations in a brass rod are performed in one run (even though in the video, the problem is created in several steps for clarity reasons). Each field is calculated on different part of the geometry with possibly different mesh.