This is going to give an import mesh option menu, keep the default settings and select ok. If every thing has been done correctly then a fluid region should show up as shown in Figure 6. Another window with several options on splitting the boundaries by angle is going to appear as in Figure 8. Add the boundary to the Selected list and leave the setting as default and click on Apply. The selection is shown in Figure Once every thing has been selected click on Close. Expand the Models tab and then expand the Gas tab as in Figure If this is done correctly then a new tab called Interfaces would appear in the simulation menu.
This is the maximum number of iterations to be used by the simulation. After the simulation has been started a graph appears on the screen which shows the residuals for the respective simulation.
Once the calculation has finished the following message appears in the Output window. Stopping criterion Maximum Steps satisfied. In order to make plots from the simulation, nevigate to the Scenes tab and right click on it, a drop down menu would appear.
Then go to New Scene and select Scalar as in Figure If this step is followed correctly a new tab Scalar Scene 1 should appear under the Scenes tab. Note that in Figure 22 the i,j and k represent the respective X,Y and Z components of velocity. Select the i component of the velocity. In this study relative pressure is required so in order to rectify this a field function is used to post-process the pressure field in the simulation.
Now in order to plot pressure follow the same procedure as done for velocity and make a new scalar scene, but this time select the User Field Function1 instead of velocity when specifying the scalar.
Before creating the line make sure that a Scalar Scene is open in the visualisation window. An input menu is going to appear in the tabs menu as in Figure 28 and the line is going to be visible in the visualisation window.
Select i component of the velocity. The difference in this plot is that the position has a different direction to the position in the previous plot and the value of the X Off set is 1.
To change the position for this plot expand the respective XY Plot tab and then expand the X Type tab. In the properties window Laminar flow in tube bundles 25 change the direction to [0. Create a new case for all the mesh and follow the same instructions.
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