Post-Processing

Once inside the post-processing section, almost all the visualisation features and management options of the pre-processing section are available: Zoom, Rotate (Rotate screen/object axes, Rotate trackball,etc.), Pan, Redraw, Render, Label, Clip Planes, Perspective, etc.

Inside the post-process section, two windows can be opened in order to make easy the visualisation of the results. These windows are Select & Display Style (see Figure 58) and View Results (see Figure 59).

Select & Display Style

Figure 57. How to access the Select & Display Style window through Menus.

 

The Select & Display Style window allows the user to select which elements of the mesh and how will be represented. This menu allows selecting Materials (Volumes), Boundaries (Surfaces) and Cuts. Note that every material or boundary defined in the preprocessing part is shown in this window with the same name but with a prefix making reference to the type of geometrical entity (volume or surface). In this example (see Figure 58) the term V Fluid makes reference to the mesh of the control volume where the Fluid material was defined. Whereas S Fluid Body and S FreeSurface correspond to the Fluid Body and FreeSurfaceBOUNDARIES. The mesh of the rest of geometrical entities are stored in the sets S SurfaceSet 12 and S SurfaceSet 13.

The user can switch them On and Off by pressing the corresponding icon. Also, clicking on a set, and pressing Color the user can change the Ambient, Diffuse, Specular and Shininess component colour of the selected set, or give it its Default colour back.

Many other utilities are available in this window. For further information please consult the reference manual of the pre/postprocessing module.

Figure 58. Select & Display Style window.

View Results

This window presents the results grouped into steps and allows the user to choose the result to be represented and the way this result will be displayed (see Figure 59). The steps represent partial results in the convergence process of the problem. The user has to select which analysis and step is to be used for displaying results. The button Analysis Selection is used to select the module analysis (results are grouped depending on the different modules of Tdyn, as shown in Figure 59) and step to be used for the rest of the results options. If some of the results view requires another analysis or step, the user will be asked for it.

The View results window allows the access to the next display options: contour fill, contour lines, show minimum and maximum and display vector.

The Contour Fill option allows the visualisation of coloured zones, in which a variable, or a component, varies between two defined values. The contour line option is quite similar to contour fill, but here, the isolines of a certain nodal variable are drawn. In this case, each colour ties several points with the same value of the variable chosen.

The Minimum and Maximum option allows seeing the minimum and maximum of the chosen result.

Figure 59. View results window

We can use View results window to see the velocity pressure map as shown in Figure 60. To do it, select next options:

Analysis: RANSOL

Steps: 90

View: Contour Fill

Results: PRESSURE

Figure 60. Pressure map