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CHANGELOG.md

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Changelog & Release Notes

Upgrading

To upgrade to the latest version of flowdyn use pip:

pip install flowdyn --upgrade

You can determine your currently installed version using this command:

pip show flowdyn

Versions

1.3.x (2022-xx-xx)

new features

  • new stats_solutions() function for solution lists (main and max)

1.3.1 (2022-03-03)

new features

  • integration.restart function similar to integration.solve without initialization
  • solution lists fieldlist has new .extend() function
  • new xtcontour and xtcontourfplots from fieldlist

changed

  • monitors outputs are removed when using integration.solve

fixed

  • add support of python 3.10
  • fix outputs if (tsave) times before first solution time

1.3.0 (2021-11-05)

new features

  • Finite Volume method on 2D cartesian grids
    • 'extrapol2d1' and 'extrapol2dk' linear extrapolation (1st to 3rd order)
    • geometric symmetry or periodic conditions, or model based
  • euler 2d model on cartesian grids
    • 'hlle' and 'centered' flux
    • set of 2d variables
    • 'insup', 'insub', 'ousub', 'outsub' conditions
  • new subsonic inlet/oulet boundary condition for euler1d model
    • insub_cbc with stagnation parameters but more stable
    • outsub_rh able to trigger shock wave even in supersonic flow
  • field.semilogy('name') for semi-logarithmic plots
  • specific fieldlist object output from integration
  • monitoring features:
    • new monitor data_average
    • monitor type handled via monitor name or type
    • monitor class provides plotting functions

1.2.0 (2021-06-05)

new features

  • shallow water model modelphy.shallowwater
  • new subsonic outlet boundary condition for euler1d model
    • outsub_prim as a legacy primitive variables set, same as outsub
    • outsub_qtot computed with p parameter and ptot and rttot extrapolation
    • outsub_nrcbc for non-reflective characteristics conditions
  • new option to timemodel.solve: stop parameter with dictionary tottime or maxit
  • new monitoring feature to timemodel.solve

fixed

  • bad initialization of cpu time computation in show_perf() for successive integration
  • fix solution.nozzle for fully supersonic cases

1.1.2 (2021-04-17)

changed

  • add asound variable to euler model

fixed

  • fix MUSCL vanleer limiter (defective since 1.1.0)

1.1.1 (2021-04-06)

fixed

  • bug fix in 1d euler supersonic inlet condition

1.1.0 (2021-03-10)

new features

  • Runge-Kutta methods rk2_heunand 'rk3_heun from Heun
  • low storage Runge-Kutta (LSRK) methods from Hu and Hussaini
  • LSRK implementation of Bogey and Bailly lsrk25bband `lsrk26bb``

changed

  • analytical 1D solution for nozzle flows in solution.euler_nozzle
  • improve test coverage
  • optimize some mesh computation
  • allow additional sources in (source based) nozzle euler model
  • euler1d and nozzle models have new massflow output variable

fixed

  • avoid warnings with vanalbada and vanleer limiters when uniform flows

1.0.1 (2021-01-29)

fixed

  • fix computation of modelphy.euler supersonic inlet condition

1.0.0 (2021-01-27)

  • models: convection, Burgers, Euler and derived (nozzle)
  • Finite Volume method for 1d mesh
  • numerical methods: linear 1st to 3rd order extrapolation ; MUSCL method and associated limiters
  • integrators: explicit, Runge-Kutta, implicit