Page 422 - TransAT_Tutorial_Manual

TransAT Tutorial Manual 10.2. Natural Convection in a Square Cavity at Ra = 10 6

The SarP module must now be activated.
• Select Input at the top of the TransATUI then select Simulation Parameters on the
left-hand side of the TransATUI

• Check SarP then set the mode to Optimisation (drop-down list)
• Click

• Set Configuration to Normal then click to close the Advanced Parameters window and
save the settings
To get more details on the SArP module’s options and settings, refer to the SArP Guide in the
TransAT User Manual.

10.2.8.2 Running the simulation
The simulation will now be run.

• Click Execute at the top of the TransATUI
The number of processors on which the simulation will be run can be changed by modifying the
value of the Number of Processors field. Set it accordingly to your workstation specification.
Note that it cannot be greater than the number of blocks which is equal to 4 in this case.
• Click to start the simulation

With these settings, an iterative process will be launched from the start of the simulation to
optimise the solver parameters.

Contrary to the original simulation, this simulation should end and reach the target residuals
in less than 2000 iterations due to the parameter optimisation operated by the SArP module.

Please note: clicking stops the optimisation process and restarts the simulation with the
best solution found by the process at that time i.e. the valid solution with the highest score. This
can help in reducing the duration of the optimisation process. Other methods that can reduce
the computation time of the SArP module are described in the Speeding up SArP section of the
TransAT User Manual.

10.2.9 Visualization of the results

The results of the simulation can be seen with the help of the Open-Source Visualisation Tool,
ParaView.

To launch ParaView, click Start and select All Programs > ParaView-4.0.1 > ParaView.

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Ascomp AG Switzerland 412 Version 5.7