Addition of new syntax for the *NODE FILE card

1

Hello, I am new here and was trying to edit the source code in an attempt to add a syntax to the NODE FILE card. The syntax would look like:
*NODE FILE
SBNL

This syntax is for the purpose of outputting structure borne noise.

My request is to get some guidance on what files I should look for.

That brings me to another question, how do I edit the outputs?, the structure borne noise is calculated as
20log(V/√2 * Vref)
V is the steady state velocity at each node.
Thanks in advance.

2

Wouldn’t it be simpler to just read the results (the frd file format is documented in the manual) in your favorite programming language, calculate and write out the desired quantity results?

Or if you’re using paraview for visualization you could apply a calculator filter to the velocity results.

1 Like
3

This file is responsible for reading the *NODE FILE keyword so maybe start from it: CalculiX/src/noelfiles.f at db22d24b9e326adf414b97c76ed02d6051e85bcc · Dhondtguido/CalculiX · GitHub