🚀[FEA]: initialization

[s-p-otta]

Is this a new feature, an improvement, or a change to existing functionality?

New Feature

How would you describe the priority of this feature request

Critical (currently preventing usage)

Please provide a clear description of problem you would like to solve.

add initialization node where it is simple to specify conditions to initialize the solution especially in fluid mechanics.

Describe any alternatives you have considered

No response

Additional context

No response

[ktangsali]

Closing as part of the archival of this repository. The key components have been upstreamed to NVIDIA/physicsnemo. Please refer to the v2.0 Migration Guide and feel free to re-open your issue there if it is still relevant.