You can change the unit system using the Unit System Selector or the Preferences. When importing "discrete mesh" files (.stl, .nas, .fem) with unspecified units, select the model unit in the Import Options dialog.
Use the Identify Parts tool to define types of parts like wheels, heat exchangers or body panels, which require specific modeling techniques
for the CFD run.
Baffles are used to model very thin walls, for example sheet metal parts. In the numerical surface mesh model, baffles are
represented by shell elements, which have fluid volume on both sides.
Once the baseline model is prepared, you can define morph volumes, morph geometry, create design shapes and run DOE
studies. These tool work for both AcuSolve and ultraFluidX-based workflows.
Before creating a belt
system, first create the wind tunnel and identify wheels.
From the Setup ribbon, click the Belt System tool.
By default, five patches are created on the wind tunnel ground for
modeling the belt system.
Define the belt system's location and sizes in the following ways:
Edit belts individually by selecting a belt in the Model Browser or modeling window
and modifying its properties in the Property Editor.
Edit the belt system by clicking Belt System
tool satellite icon .
If a belt system is defined and the Moving Ground checkbox is enabled in the
Write to ultraFluidX dialog, the belt patches are modeled as a
moving wall (moving with the inflow velocity) and the rest of the wind tunnel ground is
modeled as a stationary wall. If a belt system is defined and the Moving Ground checkbox
is disabled, the complete wind tunnel ground is modeled as a stationary wall. If no belt
system is defined and the Moving Ground checkbox is enabled, the complete wind tunnel
ground is modeled as a moving wall.
Note: The solver will always respect the settings for
boundary layer suction. Any portion of the ground that is upstream of the boundary
layer suction location will be treated as a slip wall.