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In the Select Physics tree, select Fluid Flow>Multiphase Flow>Mixture Model>Mixture Model, Laminar Flow (mm).
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Click Add.
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Click Study.
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Click Done.
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Browse to the model’s Application Libraries folder and double-click the file pem_electrolyzer_geom_sequence.mph.
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Browse to the model’s Application Libraries folder and double-click the file pem_electrolyzer_parameters.txt.
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In the Model Builder window, under Component 1 (comp1) right-click Definitions and choose Variables.
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Browse to the model’s Application Libraries folder and double-click the file pem_electrolyzer_variables.txt.
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Click Plot.
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Select the Cutoff check box.
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Click Plot.
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In the Model Builder window, under Component 1 (comp1)>Mixture Model, Laminar Flow (mm) click Mixture Properties 1.
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Locate the Dispersed Phase Properties section. From the ρd list, choose User defined. In the associated text field, type rhoO2.
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In the Settings window for Inlet, type Inlet - Electrode Surface Oxygen Evolution in the Label text field.
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Locate the Dispersed Phase Boundary Condition section. From the Dispersed phase boundary condition list, choose Dispersed phase flux.
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Click to expand the Source Faces section. From the Selection list, choose Inlets to Electrode Channels .
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Click to expand the Destination Faces section. From the Selection list, choose Outlets from Electrode Channels.
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Click the Custom button.
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Locate the Geometric Entity Selection section. From the Geometric entity level list, choose Boundary.
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Click the Custom button.
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Click the Custom button.
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In the Model Builder window, expand the Study 1>Solver Configurations>Solution 1 (sol1)>Dependent Variables 1 node, then click Volume fraction, dispersed phase (comp1.phid).
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In the Model Builder window, expand the Study 1>Solver Configurations>Solution 1 (sol1)>Dependent Variables 2 node, then click Volume fraction, dispersed phase (comp1.phid).
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In the Settings window for Surface, click Replace Expression in the upper-right corner of the Expression section. From the menu, choose Component 1 (comp1)>Mixture Model, Laminar Flow>VelAndPressure>p - Pressure - Pa.
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In the Settings window for Slice, click Replace Expression in the upper-right corner of the Expression section. From the menu, choose Component 1 (comp1)>Mixture Model, Laminar Flow>VelAndPressure>mm.U - Mass-averaged velocity field - m/s.
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In the Settings window for 1D Plot Group, type Velocity in Electrode Channels in the Label text field.
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In the Settings window for Line Graph, click Replace Expression in the upper-right corner of the y-Axis Data section. From the menu, choose Component 1 (comp1)>Mixture Model, Laminar Flow>VelAndPressure>mm.U - Mass-averaged velocity field - m/s.
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Click Plot.
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In the Model Builder window, under Study 1>Solver Configurations right-click Solution 1 (sol1) and choose Solution>Copy.
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In the Model Builder window, expand the Study 1>Solver Configurations>Solution 1 (sol1)>Dependent Variables 1 node, then click Volume fraction, dispersed phase (comp1.phid).
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In the Model Builder window, expand the Study 1>Solver Configurations>Solution 1 (sol1)>Dependent Variables 2 node, then click Volume fraction, dispersed phase (comp1.phid).
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Select the Plot check box.
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Click Done.
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Browse to the model’s Application Libraries folder and double-click the file pem_electrolyzer_geom_sequence_parameters.txt.
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Select the object arr1(1,3,1) only.
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Select the object pol2 only.
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Select the object dif1 only.
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Click in the Graphics window and then press Ctrl+A to select both objects.
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Select the object uni1 only.
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Select the object r3 only.
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Select the object r4 only.
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Select the object mov1 only.
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Click in the Graphics window and then press Ctrl+A to select all objects.
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Right-click Component 1 (comp1)>Geometry 1>Work Plane 1 (wp1)>Plane Geometry>Fillet 1 (fil1) and choose Duplicate.
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Select the object cyl1 only.
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Select the object rot1 only.
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Select the object mov1 only.
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In the Settings window for Box Selection, type Channels Above Electrode Surface in the Label text field.
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In the Settings window for Adjacent Selection, type Exterior Boundaries to Electrode Channels in the Label text field.
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Click OK.
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In the Settings window for Adjacent Selection, type Exteror Boundaries to Inlet Manifold in the Label text field.
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Click OK.
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In the Settings window for Intersection Selection, type Inlets to Electrode Channels in the Label text field.
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In the Add dialog box, in the Selections to intersect list, choose Exterior Boundaries to Electrode Channels and Exteror Boundaries to Inlet Manifold.
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Click OK.
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Click OK.
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In the Settings window for Adjacent Selection, type Exterior Boundaries to Manifolds in the Label text field.
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Click OK.
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In the Settings window for Intersection Selection, type Inlets and Outlets to Electrode Channels in the Label text field.
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In the Add dialog box, in the Selections to intersect list, choose Exterior Boundaries to Electrode Channels and Exterior Boundaries to Manifolds.
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Click OK.
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In the Settings window for Union Selection, type Electrode Channels and Manifolds in the Label text field.
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In the Add dialog box, in the Selections to add list, choose Inlet Manifold, Outlet Manifold, and Channels Above Electrode Surface.
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Click OK.
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In the Settings window for Adjacent Selection, type Exteror Boundaries to Outlet Manifold in the Label text field.
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Click OK.
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In the Settings window for Intersection Selection, type Outlets from Electrode Channels in the Label text field.
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In the Add dialog box, in the Selections to intersect list, choose Exterior Boundaries to Electrode Channels and Exteror Boundaries to Outlet Manifold.
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Click OK.
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