Create Liquid Body
Create a liquid body between selected faces.
- In the Project Tree, open the Assembly workbench.
 - On the Assembly workbench toolbar, select .
 - 
                In the modeling window, select parts on the
                    model.
                Note: Liquid body can only be applied to faces.
 - Optional: Select the Add tangent faces check box.
 - In the drop down menu, specify the Mass units.
 - Specify a value for the Total mass of the liquid.
 - Click OK.
 
Comments
- The selected faces should be the wetted surfaces that are in contact with the liquid.
 - The liquid is assumed to be inviscid and incompressible.
 - Sloshing effects are not considered.
 - It is recommended to have the liquid body fully enclosed in a structure.
 - If free surface of the liquid body is expected, see below:
- If liquid body is applied on a flat plate, a thin layer of liquid is assumed.
 - In case of open containers, the free surface is determined by the shortest path between free edges.
 - The free surface of the liquid is assumed to remain unchanged during the solution.
 
 - Liquid body application results in the following effects:
- Adds distributed mass to the structure and, therefore, changes its inertia and dynamics.
 - Incompressible fluid can significantly change vibration modes and general deformations at fluid enclosure because the volume of the enclosure is always preserved.