Defining Nodal Pressure In ANSYS® Analyses

Some of the FEA analyses are carried out because o the academic and theoric studies. But engineers generally build their physical models to simulate them in FEA software. But for theoric studies, some theoric tools are required in FEA software. ANSYS® provides various kinds of tools for it. 


One of these tools is the ‘nodal pressure’ tool that you can apply pressures as boundary conditions in ANSYS®, in mesh and nodal level. Here, we explain how to define nodal pressure in ANSYS® Mechanical analyses. 

How To Define Nodal Pressure In ANSYS® Mechanical?

Click on the ‘Nodal Pressure’ in ANSYS® Mechanical.

Right-click on the analysis as shown above then hover your mouse on the ‘Insert’ tab. And click on ‘Nodal Pressure’ as shown in the red box.

Select the nodes for the named selection.

If you want to define nodal pressure, you need to create a named selection for it. But this named selection must be node-based. To make the node-based named selection, you need to select the nodes as shown above. Select the node selection tool as shown by the red arrow. Select the nodes that you want to apply pressure on them. Then click on the ‘Apply’ button to apply pressure, in the geometry tab. 

Select the created named selection.

After you create the node-based named selection above, select this node-based named selection in ‘Node Pressure’ as shown above.

Define the magnitude of your nodal pressure.

You can define nodal pressure value as a constant value like above. Also, you can define the pressure value as ‘tabular(time)’ or ‘time function’.


So, the definition of nodal pressures in ANSYS® Mechanical is very simple as you see above. 

Do not forget to leave your comments and questions below about the definition of nodal pressures in ANSYS® Mechanical.

NOTE: All the screenshots and images are used for educational and informative purposes. Images used courtesy of ANSYS, Inc.


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