Step 9: Postprocessing

1.   Create an isosurface of the methanol mass fraction.

Surface $\rightarrow$ Iso-Surface...

(a)   Select Species... and Mass fraction of ch3oh from the Surface of Constant drop-down lists.

(b)   Click Compute to update the minimum and maximum values.

(c)   Enter 0.002 for Iso-Values.

(d)   Enter methanol-mf=0.002 for the New Surface Name.

(e)   Click Create and the close the Iso-Surface dialog box.

2.   Display the isosurface you just created ( methanol-mf=0.002).

General Display...

(a)   Deselect atomizer-wall and select methanol-mf=0.002 in the Surfaces selection list.

(b)   Click the Colors... button to open the Mesh Colors dialog box.

i.   Select surface in the Types list and green in the Colors list.

  Scroll down the Types list to locate surface. The isosurface will now be displayed in green, which contrasts better with the rest of the mesh.

ii.   Close the Mesh Colors dialog box.

(c)   Click Display in the Mesh Display dialog box.

  The graphics display will be updated to show the isosurface.

3.   Modify the view to include the entire atomizer.

Graphics and Animations Views...

(a)   Click Define... to open the Graphics Periodicity dialog box.

i.   Select fluid from the Cell Zones list.

ii.   Make sure that Rotational is selected from the Periodic Type list and the Number of Repeats is set to 12.

iii.   Click Set and close the Graphics Periodicity dialog box.

(b)   Click Apply and close the Views dialog box.

(c)   Click Display and close the Mesh Display dialog box.

(d)   Use the mouse to obtain the view shown in Figure  17.8.

Figure 17.8: Full Atomizer Display with Surface of Constant Methanol Mass Fraction

4.   Save the case and data files ( spray3.cas.gz and spray3.dat.gz).

File $\rightarrow$ Write $\rightarrow$ Case & Data...