Page 405 - TransAT_Tutorial_Manual

TransAT Tutorial Manual 10.1. Flow past a backward facing step

Initial Conditions
In this tab simple initial conditions are set. In this case the default initialisation method – i.e.
Automatic – which set pressure accordingly to the source terms and make the initial velocity field
divergence-free will be used. Therefore no settings should be changed in this tab.

Output Management
In this tab the parameters of the simulation outputs are set. For this example, only the
visualization output will be defined.

• Click Output Management on the left-hand side of the TransATUI
• Set the Output File Format and Frequency of output files from Iteration / timestep
number as follows

Output F i l e Format : Paraview
Frequency of output f i l e s : 100

• Click to select the variables for which data is to be saved

• Activate the following variables in the Output Variables window then click to save the
settings and close the window

Primary v a r i a b l e s :
Pressure : ON
U−Velocity : ON
V−Velocity : ON

10.1.7.1 Saving the project
The template for the simulations is now ready. To save it

• Click Files then select Save

10.1.8 Simulation in normal mode
10.1.8.1 Creating the project

Please note: It is important to save different projects in different folders, because results will
always be stored in a sub-folder called RESULT. The template will be used for several grids.

• Click Files then select Open Project. Alternatively, press Ctrl+o.

• Select backwardstep.stt.

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