ACUSOLVE Interface

Solver	AcuSolve
Type of mesh	unstructured mesh
Dimension	3D

T

S

U

(Return)

The translator creates the following ACUSOLVE files:

• Acusim.cnf:                ACUSOLVE configuration file
• filename.inp:              ACUSOLVE input file
• MESH.DIR/filename.crd:     Computational mesh coordinate file
• MESH.DIR/filename.*.cnn:   Cell connectivity files for each cell group/topology
• MESH.DIR/filename.*.ebc:   Element boundary condition file for each boundary group/topology
• MESH.DIR/filename.*.nbc:   Nodal boundary condition file for each boundary group
• MESH.DIR/filename.pbc:     Periodic boundary condition node pairs
• filename.*.nic:            Option to create .nic files for Optimesh

The translator writes the ACUSOLVE files using an unstructured domain file, a boundary conditions file and a parameters file (acusolve.par).

Setting the ACUSOLVE Parameters and Options

To create the ACUSOLVE input files, select "ACUSOLVE" in the "Output > Select solver" menu. Click on the icon "Edit parameters" which brings up ACUSOLVE Solver parameters window. Within this panel, solver options are specified, such as problem type, turbulence models, material models, solution strategy, etc. New material models can be created by selecting "Create new" under the Material Model heading.  Within a material model, select the material model name and specify fluid or solid.  Select the property to be specified and enter the appropriate values.

Once the desired parameters and properties are specified select "Accept" at the bottom of the panel.  This writes the acusolve.par file to be used in the translation process.  This is the minimum that needs to be performed to enable the ACUSOLVE files to be written.

If the equations of the model were changed in the Problem Description panel when first setting the solver parameters, the Solution Wizard under Solution Strategy should be run.  The parameters panel should be re-opened, and select the '+' next to Solution Strategy and select "Solution Wizard" to open the "Solution Wizard" panel. Make any desired changes to the settings and select "Accept" at the bottom of the panel.  This re-saves the acusolve.par file.  Re-open the parameters panel and go back to the Solution Wizard panel.  Select "Run Wizard" to reset the solution strategy parameters according to the new settings.  Select "Accept" again at the bottom of the panel, as it is necessary to save the acusolve.par file immediately before and after running the Solution Wizard.

Setting Boundary Conditions

To set boundary conditions, click on the icon "Boundary conditions" from the Output menu.  The available element types are Volumes, Surfaces, Edges, Nodes, and Mixed/Unknown.  For the families under Volumes, select the appropriate material model and whether it is fluid or solid.  NOTE: As a minumum, the material model for each Volume family should be specified.  For Surfaces, Simple BCs can be specified as well as radiation parameters, etc.

When all desired boundary conditions have been specified, select "Accept" at the bottom of the panel.

Creating the ACUSOLVE Files

Click on the icon "Write input" from the Ouput menu. Select an existing unstructured domain file from the list of available filesi, then click "open".  A window will then open with the different options for the ACUSOLVE input:

• Give the prefix for the ACUSOLVE file names (problem name)
• Specify the ACUSOLVE problem directory
• Give the name of the parameter file
• Give the name of the boundary condition file
• Option to give a scaling factor for each direction (default is 1.0) if necessary to convert dimensions to meters
• Option to specify the user auxiliary script, if applicable
• Option to write a .inp file
• Option to create .nic files for Optimesh
• Option to write internal walls

Select "Done" to perform the translation of the domain file to the ACUSOLVE files as stated above.

Limitations

• This interface is only written for 3D models.

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

(Return)