Multicomponent Mixing using a Nozzle: Exercise 1—Extracting the Fluid Domain
Fluid domain extraction is the creation of a closed geometric region that surrounds the fluid.
1. Click Home > Select Working Directory and navigate to the Advanced_FlowAnalysisModels folder. Click OK.
2. Click
File >
Open.
3. From the File Open dialog box, browse to the Multi-component-mixing folder and select MIXING_NOZZLE.asm. Click Open.
4. Click
in the Graphics toolbar to display the style elements. Select
Shading, or
Shading with Edges.
5. Click the Applications tab.
6. Click
Flow Analysis. The
Flow Analysis tab opens.
7. Click
New Project. If the Residual plot opens, close it.
8. Click
Create Fluid Domain. The
Fluid Domain Creation tab opens.
9. Click the Openings tab.
10. Click the Faces box. The Surface Sets dialog box opens.
11. In the Surface Sets dialog box, under Included surfaces right-click all the surfaces and click Remove All.
12. In the graphics window, press CTRL and select the four surfaces shown below. Four surfaces appear in the
Surface Sets dialog box, under
Included surfaces.
13. Click OK.
14. In the
Fluid Domain Creation tab click
to create the fluid domain.
Splitting the Boundary
1. In the Model Tree, right-click MIXING_NOZZLE_1_FLUID.PRT.
2. Click
. The part opens in a new window. Make this the active window.
3. In the MIXING_NOZZLE_1_FLUID.PRT window, click the Editing list.
4. Click
Split Surface.
5. In the Split Surface tab, click Placement.
6. Select the nozzle opening as shown below.
7. Click the
Selected contours box and select the fuel pipe opening as shown below.
8. Click
.
9. In the
Operations group, click
Regenerate. Toggle to the assembly in the window.
Adding the Simulation Domain
1. In the
Simulation Domains group, click
Select Simulation Domains.
2. Click Add fluid domain.
3. In the Model Tree, select MIXING_NOZZLE_1_FLUID.PRT and click OK.
4. MIXING_NOZZLE_1_FLUID.PRT appears in the Model Tree. Boundaries for the boundary conditions
BC_1,
BC_2,
BC_3, and
MIXING_NOZZLE_1_FLUID are created automatically. They appear in the Flow Analysis Tree under
Boundary Conditions >
General Boundaries Adding and Renaming Boundaries
1. Under Domains, select MIXING_NOZZLE_1_FLUID.
2. In the
Operations group, click
Add Boundary Condition. The
Surface Sets dialog box opens.
3. In the graphics window, select the fuelpipe opening shown below.
4. In the Surface Sets dialog box, click OK. BC_4 appears under General Boundaries in the Flow Analysis Tree
5. Click OK.
6. In the Flow Analysis Tree under
Boundary Conditions >
General Boundaries, right-click
BC_1 and select
Rename.
7. In the
New name box, type
Nozzle_Outlet and click
.
8. In the Flow Analysis Tree under
Boundary Conditions >
General Boundaries, right-click
BC_2 and select
Rename.
9. In the
New name box, type
Nozzle_Side_Inlet and click
.
10. In the Flow Analysis Tree under
Boundary Conditions >
General Boundaries, right-click
BC_3 and select
Rename.
11. In the
New name box, type
Nozzle_Inlet and click
.
12. In the Flow Analysis Tree under
Boundary Conditions >
General Boundaries, right-click
BC_4 and select
Rename.
13. In the
New name box, type
Fuelpipe_Inlet and click
.
