trixi-framework / Trixi.jl / 24651940671

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Add Helmholtz EOS representation for `NonIdealCompressibleEuler` (#2935)

* Add Helmholtz representation of EOS from Klein et al 2026

* add unit tests

* add test that Helmholtz and IdealGas recover the same results

* formatting

* Add NEWS.md entry

* update NEWS.md

* add temperature specialization

* add speed_of_sound specialization and invoke tests against fallback

* update comparison test of IdealGasHelmholtz and IdealGas

* simplify unit tests

* move extra end block in tests

* fix tests formatting

* move Helmholtz ideal gas specializations to new file

* fix typo unrelated to this PR

* Apply suggestion from code review

Co-authored-by: Joshua Lampert <51029046+JoshuaLampert@users.noreply.github.com>

* use default tols and remove unnecessary namespacing

* fix test import

* add helmholtz EOS to type tests

* fix variable scope issue using @trixi_test_include

* fix variable scoping for previously added test

* pass in @__MODULE__ instead of using @test_trixi_include

* replace @test_trixi_include with trixi_include

comment

* Remove tildes from docstrings

* add back dropped imports

---------

Co-authored-by: Hendrik Ranocha <ranocha@users.noreply.github.com>
Co-authored-by: Joshua Lampert <51029046+JoshuaLampert@users.noreply.github.com>

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