Added cht pipe example.

[krishnatejas12]

New cht example for a pipe flow problem added.

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 85.21%. Comparing base (bec6362) to head (86df3c6).
⚠️ Report is 32 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #542      +/-   ##
==========================================
- Coverage   85.77%   85.21%   -0.56%     
==========================================
  Files          43       43              
  Lines        2679     2686       +7     
==========================================
- Hits         2298     2289       -9     
- Misses        381      397      +16     

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[dabrown93]

"using System Coupling" intead of "that is used as a tutorial for System Coupling". Then it says "This Fluid-Structure interaction... " etc. You can delete that sentence. You can write more about the case. How about this:
"Conjugate heat transfer problems can be numerically unstable. This example demonstrates how a user may appropraitely choose interface conditions and stabilization scheme for this configuration."

[dabrown93]

Change to the following:

• Ansys Fluent is used to model the thermal fluid flow in the pipe
• Ansys Mechanical APDL (MAPDL) is used to model thermal transfer in the pipe wall.
• System Coupling coordinates the coupled solution to the conjugate heat transfer problem, including numerical stabilization if needed.

[dabrown93]

Outer wall is 350K.

[dabrown93]

We can remove this line:
"The setup is simulated for a few..." etc.

[dabrown93]

Also, ansys-mapdl-core.

[dabrown93]

Instead of doing this, it might be better to manually add the transfers, and explain that it is better to send heat rate to the solid.

[dabrown93]

This might be good place for the Biot number calculation, and we want to give some comment about it. "Check the Biot number, and apply stabilization if the Biot number is large." You can also include some code:
if Bi > 1:
syc.setup.analysis_control.global_stabilization = "Quasi-Newton"

[dabrown93]

I think we need comments for all lines of this function. Like "Calculate the Reynolds number based on the pipe length." "Calculate Nusselt number for laminar pipe flow based on [cite reference]." "Calculate the convection coefficient of the fluid based on the fluid Nusselt number." "Calculate the Biot number for the pipe flow based on [cite reference]."

[dabrown93]

We can document this function more. Define each input and the return value.

[dabrown93]

Lets include some visualization. We can include both the mesh and the results, at the appropriate point in the code.

[dabrown93]

The Biot number calculation can move down to the System Coupling setup.

[dabrown93]

What is NS? Lets include more detailed comments in this section so users can understand what is happening.