trixi-framework / Trixi.jl / 26212692274

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Add FFTW Based Spectral Analysis (#2956)

* Add Spectral Analysis

* Add CI coverage for energy spectrum analysis

* Add Postprocessing directory and interpolation to LGL features

* Simplify and Rescopepostprocessing analysis

* Fix random change in project

* Change scope to focus on compressible Euler

* Simplify and change tests

* Add back AMR check

* Apply suggestion from @DanielDoehring

Co-authored-by: Daniel Doehring <doehringd2@gmail.com>

* Dispatch 2d and 3d spectrum

* Fix citation

* Update src/postprocessing/spectral_analysis.jl

Co-authored-by: Daniel Doehring <doehringd2@gmail.com>

* Update src/postprocessing/spectral_analysis.jl

Co-authored-by: Daniel Doehring <doehringd2@gmail.com>

* Update src/postprocessing/spectral_analysis_3d.jl

Co-authored-by: Daniel Doehring <doehringd2@gmail.com>

* Update src/postprocessing/spectral_analysis_3d.jl

Co-authored-by: Daniel Doehring <doehringd2@gmail.com>

* Update src/postprocessing/spectral_analysis_3d.jl

Co-authored-by: Daniel Doehring <doehringd2@gmail.com>

* Update src/postprocessing/spectral_analysis_3d.jl

Co-authored-by: Daniel Doehring <doehringd2@gmail.com>

* Update src/postprocessing/spectral_analysis_2d.jl

Co-authored-by: Daniel Doehring <doehringd2@gmail.com>

* Update src/postprocessing/spectral_analysis_2d.jl

Co-authored-by: Daniel Doehring <doehringd2@gmail.com>

* Update src/postprocessing/spectral_analysis_2d.jl

Co-authored-by: Daniel Doehring <doehringd2@gmail.com>

* Update src/postprocessing/spectral_analysis.jl

Co-authored-by: Daniel Doehring <doehringd2@gmail.com>

* Update src/postprocessing/spectral_analysis_2d.jl

Co-authored-by: Daniel Doehring <doehringd2@gmail.com>

* Enhance documentation for energy spectrum function

Added detailed return information and internal constructs for energy spectrum computation.

* Apply suggestions from code review

* Add comments to clarify node selection in interpolation functions for 2D and 3D TreeMesh

* Remove Trixi de... (continued)

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