Add capabilities to run simulations with 2-phase mixtures with non-condensable gases with rDG spacial discretization

[moosebuild]

Imported from idaholab/thm#59 by @andrsd at Jun 27, 2019 11:14AM MST

Mentioned merge requests:

• NCG with rDG (!141)

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The 2-phase fluid flow model needs to be extended to work with the mixture model for non-condensable gases (IdealRealGasMixtureFluidProperties in MOOSE) and rDG spacial discretization.

[moosebuild]

Imported from idaholab/thm#59 by @andrsd at Jun 27, 2019 01:13PM MST

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Hi @andrsd ,

I pushed the NCG extension for rDG to a new branch wip_ncg. It would need the MOOSE update, where issue #13648 was solved (the changes for stiffened gas).

The sedimentation test cases for the new mixture model are included in tests/test/ncg_rdg. There are two of them, one for real fluids and one for stiffened gas with ideal gas. They both run to steady state. Since the first test is using iapws95 and nitrogen, you might want to move it to RELAP-7. Both tests are skipped for now (MOOSE-update and dependency on iapws95 and nitrogen).

Some unit tests are also implemented, but I commented out three of them, since they would probably need the analytical sound-speed derivatives for the mixture. I worked out the math but didn't have time to implement them. For the HLLC test, suitable input must be typed in to make sure that the test runs in all possible regions.

By Kunick, Matthias on 2019-06-27T20:13:35 (imported from GitLab project)

[moosebuild]

Imported from idaholab/thm#59 by @andrsd at Jul 09, 2019 07:21AM MST

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This will be done in #64 (moved from RELAP-7 repo)

By Andrs, David on 2019-07-09T14:21:45 (imported from GitLab project)

[moosebuild]

Closed at Jul 09, 2019 07:21AM MST.