Page 316 - TransAT_Tutorial_Manual

TransAT Tutorial Manual 7.2. coupling slug

• Click Execute at the top of the window
The Number of processors sets the number of processors on which the simulation will be run.

Running TransAT

• Click to initialise the flow field from the initialconditions.cxx file.

• Click to start the simulation

7.2.12 Visualization of the results
The results of the TransAT simulation can be seen with the help of the Open-Source Visualisation
Tool, ParaView.
To launch ParaView, click Start then select All Programs > ParaView-4.0.1 > ParaView.
• Click on File − > Open.

• Navigate to your project folder.

• Go to the RESULT folder and choose <projectname>...vtm for 2D visualization.

• Click .

• Click +Y, for an horizontal visualization.
• To visualize solid-fluid interface, select <projectname>...vtm in the tree. Click in the
toolbar (alternatively, select Filters − > Common − > Contour in the menu bar).

• Use Contour by: EmbI (EmbI is the distance to the fluid-solid interface) and enter
Isosurface: 0.99e-3

• Choose variable PhaseAlpha3 from the drop-down list, to visualize the Water mass frac-
tion.

• Play the animation by hitting in the toolbar.
You can also have a look at the results of the OLGA simulation. Particularly, you can select the
“Profile Plot” on the main OLGA window, and then choose to plot GASMFR and TWATMFR,
to look at the profile distribution of the air and water mass fractions. Then, you can open a
second profile plot, selecting the pressure PT, and a third one, selecting the mass fluxes QG and
QLTW.

To get a rough idea about visualisation of TransAT results with ParaView, please refer to the

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