Verification & Validation

We do not have experimental data to validate our results. So we'll be carrying out only verification here. 

Comparison with Hand Calculations

We'll check the following using hand calculations:

• Reaction in axial (z) direction where mid nozzle is attached to top nozzle (not modeled) 

• Thermal strain 

• Hoop stress

• Bolt preload

Reaction in Axial Direction

The reaction reported by ANSYS is within 10% of the hand calculation as per the images below. 

Thermal Strain

Select Solution > Strain > Thermal 

Check that the thermal strain reported by ANSYS for all parts compares well with the expected value from alpha*(dT). 

dT is calculated as T2-T1

T2 is the temperature specified in the Thermal Condition under Static Structural. Note that alpha is calculated at this temperature.

T1  is the Environment Temperature. Make sure it is set to 70F as per below.

 

Go to Exercises

Go to all ANSYS Learning Modules