vk.com/club152685050Modeling One-Way Fluid|-vkStructure.com/id446425943Interaction (FSI) Within Fluent

b.Enter 2e+11 for the Youngs Modulus.

c.Click Change/Create and close the Create/Edit Materials dialog box.

22.4.4. Cell Zone Conditions

1.Set up the cell zone conditions for the solid zone associated with the probe (solid).

Setup → Cell Zone Conditions → solid Edit...

a.Select steel from the Material Name drop-down list.

b.Click OK to close the Solid dialog box.

You must ensure that the boundary conditions are appropriately defined for every wall that is immediately adjacent to the solid zone.

1. Set the boundary conditions for solid-top, which is located where the probe attaches to the top of the test chamber. You will define it as being fixed (that is, undergoing no displacement).

Setup → Boundary Conditions → solid-top Edit...

a.Click the Structure tab.

b.Retain the default settings for the displacement boundary conditions (that is, Node X-Displacement from the X-Displacement Boundary Condition drop-down list with 0 for the X-Displacement, and so on).

c.Click OK to close the Wall dialog box.

2.Set the boundary conditions for all of the wall zones of the solid cell zone that lie on the plane of symmetry and represent the center of the probe. In this case there are two: they should be free to move with no stress in the X- and Y-directions, but fixed in the Z-direction.

a.Set the boundary conditions for solid-symmetry.

Setup → Boundary Conditions → solid-symmetry Edit...

vk.com/club152685050Modeling One-Way Fluid|-vkStructure.com/id446425943Interaction (FSI) Within Fluent

i.Click the Structure tab.

ii.Select Stress Free from the X- and Y-Displacement Boundary Condition drop-down lists.

iii.Retain the default settings for the Z-Displacement Boundary Condition drop-down list and the

Z-Displacement field (that is, Node Z-Displacement and 0, respectively).

This ensures that the zone does not move out of the plane of symmetry.

iv.Click OK to close the Wall dialog box.

b. Copy the boundary conditions from solid-symmetry to solid-symmetry:011.

Setup → Boundary Conditions → solid-symmetry Copy...

i.Make sure that solid-symmetry is selected in the From Boundary Zone list.

ii.Select solid-symmetry:011 in the To Boundary Zones list.

iii.Click the Copy button.

A Question dialog box will open, asking if you want to copy the boundary conditions to all of the selected zones. Click OK.

iv. Close the Copy Conditions dialog box.

3.Set the boundary conditions for all of the two-sided walls (that is, the wall / wall-shadow pairs) between the solid and fluid cell zones. In this case there is one pair of walls, which represent the outer surface of the probe.

a. Set the boundary conditions for fsisurface-solid-shadow.

Setup → Boundary Conditions → fsisurface-solid-shadow Edit...

Note that the Adjacent Cell Zone for this wall is flow, which is the fluid zone. The side of the wall / wall-shadow pair that is immediately adjacent to the fluid does not require any settings in the Structure tab, and so this tab is not available.

i.Retain the default settings in the Momentum tab.

ii.Click OK to close the Wall dialog box.

b. Set the boundary conditions for fsisurface-solid.