The FE mesh is generated with the global mesh size, resulting from the level of detail (see Chapter General) and the mesh density in due consideration of possible boundary layers (see Chapter General).
New in RWIND 3 is the "Mesh Refinements" in the "Editor" section, where you can create, edit, and assign mesh refinements. It is possible to create/edit local volumetric mesh refinements around the model as well as to assign mesh refinements to zones. The options are available in "Edit Bar - Mesh Refinements".
Or you can create a mesh refinement using the "Insert' menu" or the "Mesh Refinements" shortcut menu of the Data Navigator.
Refinement by 3D Blocks
The first option "New Refinement by 3D block..." opens the "Mesh Refinement" dialog box below, and allows you to assign the mesh refinement to specific areas of the model.
If required, enter a "Comment" that makes it easier to identify the refinement. In the "Mesh Density" section, you can define the target length of the mesh cells so that the refinement is adequate to the critical area. Then, specify the position and size of the box-shaped refinement area in the "Location and Dimensions" section. You can also use the
option to define the refinement in the work window. The functions of the graphical manipulator correspond to those used to adjust the wind tunnel (see Chapter Wind Tunnel).
The "Anchor Point" is a reference point defined in the local coordinate system and is related to the coordinate system of the model. It ensures that the mesh refinement is linked to the model; for example, if the model is rotated, the mesh refinement is rotated, too.
The last option allows you to disable the standard mesh refinements, as you can see in the image below; the settings are in the "Edit - Bar" and "Simulation Parameters." This allows you to generate a standard mesh refinement that can be then modified and positioned.
Refinement on Zones
The second option "New Refinement on Zones..." allows you to assign Mesh Refinements to the defined zones. How to define and work with zones is described in Chapter Zones.
