To start this tutorial import the tutorial project into your ‘Dashboard’ via the link above.
For convenience the mesh has already been created and would be loaded into the viewer as shown below
You can interact with the mesh as in a normal desktop application
Create a simulation
To create a new simulation click on the ‘+’ option next to the ‘Simulations’ tab
Select the Compressible Flow Analysis type and click ‘Ok’
After clicking ‘Ok’, a new tree will be automatically generated in the left panel with all the parameters and settings that are necessary to completely specify such an analysis.
All parts that are completed are highlighted with a green check. Parts that need to be specified have a red circle. While, the blue circle indicates an optional settings that does not need to be filled out
Set the turbulence model to laminar and choose transient as shown below
Next, in the tree in the navigator pane, select Domain and assign the uploaded mesh and ‘save’
Material selection and assignment
Next, add the materials from the ‘Material Library’ for fluid and the solid phases. First, we start with clicking on sub-tree “Materials”, click on ‘+’ from the options panel as shown.
This pops-up a ‘Material Library’ from which we select “Air” and click on ‘Ok’. This will then automatically load the standard properties for air.
Then, select the volume domain and save.
In the tree, select Initial Conditions
Apply the initial conditions according to the following table:
velocity (x, y, z)
(30, 0, 0)
Turbulent dynamic viscosity
Now, we come to define the boundary conditions.
To create a boundary condition, click on the ‘+’ option next to the Boundary conditions and select the required boundary condition from drop down menu, as shown in figure.
For the Inlet select the ‘Velocity Inlet’ boundary condition, specify the values shown in the figure below, assign inlet faces for this boundary condition and click on save.
Add other boundary conditions as shown in figures below
Setup the Properties as shown in figure. Keep the Solver settings as default.
Keep the Schemes to default values as shown.
We will run the simulation on 8 cores, with a timestep length of 0.00005 s and End time value of 0.07 s.
Set ‘Write control’ to time step with value of 200 for the results to be written.
Start a simulation run
The last thing to do for running this simulation is to create a run.
The new run is created by clicking on the ‘+’ symbol next to ‘Simulation Runs’
Give a name to the run and start the run
After the run has been finished, you will see the convergence plots.
Select the ‘Solution fields’ under the Run to post process the results on the platform. Or they can be downloaded and post-processed locally (e.g. with ParaView)
Select the results and click “All Velocity[node]” to visualize Velocity Profile.