lp:~s-parkinson11/fluidity/SU_SUPG_stress_form_fix

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Merged into lp:fluidity at revision 4034

Stephan Kramer: Approve on 2012-08-17

Diff: 136 lines (+58/-18)

2 files modified

assemble/Momentum_CG.F90 (+39/-17)
femtools/Diagnostic_Fields.F90 (+19/-1)

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4031. By Samuel Parkinson on 2012-08-17

capitalised u in calculate_grid_reynolds_number to match the rest of the algorithm

4030. By Samuel Parkinson on 2012-08-17

fixed calculate_grid_reynolds_number in the same way as stabilisations in previous commit. This algorithm involves inverting the stress tensor which cannot be done when all components of the viscosity tensor are the same

4029. By Samuel Parkinson on 2012-08-17

zero off diagonal terms of viscosity tensor when calculating upwind stabilisations

4028. By Rhodri Davies on 2012-08-16

Merge relax_halo_verifies branch into trunk. Thanks to dham for review.

4027. By Lawrence Mitchell on 2012-08-13

Fix DG momentum assembly corner case

Since r3984 we would assemble elements in DG momentum if
element_neighbour_owned returned true. However, for some corner cases
element_neighbour_owned need not return true if the element is owned
(consider the case of a process with one owned element). In this
situation we would not correctly assemble all elements. To fix this,
change the test for element assembly to directly check for element
ownership.

At the same time, update the documentation for element_neighbour_owned
to note this issue.

4026. By Christian Jacobs on 2012-08-09

- Updated the tephra_settling example's .flml file to use the new multiphase_interaction schema structure.
- Corrected a small typo in the manual.

4025. By Christian Jacobs on 2012-08-09

Moved the compressible multiphase MMS tests to the longtests directory.

4024. By Christian Jacobs on 2012-08-09

Merging compressible-multiphase branch revisions r3955 to r4067 (inclusive) into trunk.

Summary of changes:
===================

- Added multiphase support for the compressible projection method (currently only for CG Pressure).

- Small changes to the logic in Momentum_Equation.F90. Replaced the use_compressible_projection logical with compressible_eos which is .true. if option_count("/material_phase/equation_of_state/compressible") > 0, and .false. otherwise.

- Added multiphase support for the InternalEnergy equation. Note that the whole state array is now passed to solve_field_equation_cg.

- Implemented the heat transfer term by Gunn (1978).

- Added three P2-P1 multiphase MMS tests for model verification: one without InternalEnergy fields, one with InternalEnergy fields, and one with InternalEnergy fields and heat transfer. The tests will become longtests after merging into the trunk.

- The manual now has documentation on the compressible multiphase model, including the multiphase version of the InternalEnergy equation.

- Added a diagnostic field called CompressibleContinuityResidual which computes the residual of the compressible multiphase continuity equation. This is similar to the SumVelocityDivergence field for incompressible multiphase flow which computes \sum{div(vfrac*u)}.

- Added two gas-solid shock tube tests to help to validate the model: mphase_rogue_shock_tube_dense_bed_glass and mphase_rogue_shock_tube_dense_bed_nylon.

- Added another gas-solid shock tube test (mphase_dusty_gas_shock_tube) which uses the setup by Miura & Glass (1982).

- Implemented two new correlations for fluid-particle drag. The one by Wen & Yu (1966) can support higher Reynolds numbers (compared to the existing Stokes' law correlation). The one by Ergun (1952) can support dense flows where the volume fraction of the particle phase is greater than 0.2, like in the dense bed shock tube tests (and in the pyroclastic flow tests which will hopefully come later).

- Changed the structure of the schema. Users now explicitly select which interaction terms they wish to include, as well as the drag correlation, under "/multiphase_interaction" in Diamond. These options are stored in the new files multiphase_interaction.rnc and multiphase_interaction.rng.

- Added a test for the Wen & Yu (1966) drag correlation. This is similar to mphase_stokes_law.

- Added a test to check if inlet velocity boundary conditions work with the incompressible multiphase flow model.

- Added a test for the flux boundary condition.

4023. By Rhodri Davies on 2012-08-06

Bug fix for CV, when a diffusion term is present. Again supplied by Cian.

4022. By Jon Hill on 2012-08-02

Adding tests for PAR and updating manual