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Fokker Planck optional features#225

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mrhardman merged 37 commits intomastermabarnes/moment_kinetics:masterfrom fokker-planck-vperp-bc-experimentmabarnes/moment_kinetics:fokker-planck-vperp-bc-experimentCopy head branch name to clipboardAug 7, 2024

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Commits on Jun 28, 2024

• Add vperp.bc option "zero-no-regularity", intended for use with the collision operator only (or any diffusion operator that has no flux at vperp = 0 -- so not the numerical vperp diffusion at prese…

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• Attempt to add new test for the fokker planck time evolution, currently failing.

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• Correct test expected values, refactor test inputs to make better use of existing functionality.

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• Change input to match check-in test.

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• Make sure both vperp_bc options are precompiled.

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• Make conserving correction terms an optional feature through "use_conserving_corrections" in the Fokker Planck input namelist.

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Commits on Jul 1, 2024

• Input file for slowing-down Fokker-Planck relaxation, without enforcing dF/dvperp = 0. Simulation shows reasonable behaviour with density preserved and thermal speed hitting a steady-state value ne…

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Commits on Jul 3, 2024

• Correct typo in input for vpa_IC_v0 parameter, no underscore assumed for other parameters and no underscore being used in the examples files, so remove it in the source for consistency.

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• Prevent animations being made if one of the dimensions has size 1.

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• Reduce time step size of example input file to avoid numerical instability.

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Commits on Jul 4, 2024

• Prevent pointless plots being made when r and z dimension size is 1.

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• Rename and add example file for slowing-down distribution test. Testing without self collisions is much faster.

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Commits on Jul 5, 2024

• Change vperp numerical dissipation to use laplacian_derivative!(), support laplacian_derivative!() for chebyshev points with direct differentiation calculation.

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Commits on Jul 8, 2024

• Addition of tests of laplacian_derivative!(). Note the large errors, especially associated with the Chebyshev pseudospectral method, which does not show good convergence even at large ngrid. The fi…

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• Initial refactor moving Er_constant to geo struct.

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• Merge branch 'mms_bugfixes_and_docs' into refactor-to-enable-spitzer-tests

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• Remove Er_constant from comments.

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• Delete out of date input files.

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• Move Er_constant to geometry namelist.

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• Fix various bugs in last commit so that refactored code runs and MMS tests can be executed.

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• Add option to simulate a 0D2V plasma with collisions and advection terms in vpa and vperp, for testing of the compatibility of the pseudospectral and the finite-element methods for advection and co…

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Commits on Jul 10, 2024

• Changes to permit testing of "none" boundary condition option for Fokker-Planck time evolution. In this mode of operation, boundary conditions on the fluxes are imposed through the assembly of the …

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Commits on Jul 30, 2024

• Remove old example file.

  

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• Add plot of pperp(z) at final time.

  

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Commits on Jul 31, 2024

• Attempt to merge master into branch fokker-planck-vperp-bc-experiment. Expect tests to fail associated with GaussLegendre grids, reason unknown.

  

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• Update moment_kinetics/src/input_structs.jl

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• Update makie_post_processing/makie_post_processing/src/shared_utils.jl

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• Update makie_post_processing/makie_post_processing/src/shared_utils.jl

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• Update moment_kinetics/src/moment_kinetics_input.jl

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• Update moment_kinetics/src/moment_kinetics_input.jl

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• Update moment_kinetics/src/moment_kinetics_input.jl

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• Suggested change to dirichlet_bc option for Gauss Legendre, do not impose bc on lower endpoint of a cylindrical coordinate.

  

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• Merge branch 'fokker-planck-vperp-bc-experiment' of https://github.com/mabarnes/moment_kinetics into fokker-planck-vperp-bc-experiment

  

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• Change names of vperp boundary conditions for sensible behaviour. "zero" now implies that zeros are imposed at the ends of the domain, "zero-impose-regularity" imposes dFdvperp = 0 at vperp = 0.

  

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• Change input option in util/precompile_run.jl

  

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Commits on Aug 1, 2024

• Change default so that dirichlet_bc=false, and feature permitting ODE solve with K and L matrices is suppressed (but can be revived in a custom script with the dirichlet_bc=true optional argument i…

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Commits on Aug 6, 2024

• Comment out mms_tests.jl from debug_test/runtests.jl due to missing Symbolics package.

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