MFIX-Exa 25.02 Release Notes

Improvements/new capabilities

  • Add option to volume average deposited values (exa/mfix!1424)
  • Add Broyden’s method for numerical jacobian in BE integrator (exa/mfix!1397)
  • Add option to specify ‘ones’ as a variable for solids monitors (exa/mfix!1404)
  • Handle particles in porous media (exa/mfix!1400)
  • Basic porous media model (exa/mfix!1368)
  • Allow digits used in output filenames to be specified (exa/mfix!1373)
  • Add option to print effective fluid viscosity to the plotfile (exa/mfix!1323)
  • Improve chemistry ODE StiffSolvers performance (exa/mfix!1392)

Bug fixes

  • Use volume fraction boundary value (exa/mfix!1419)
  • Fix bug in computation of rotation tensor square in WALE eddy viscosity (exa/mfix!1416)
  • GPU global memory access error in calc_transfer_coeffs kernel (exa/mfix!1414)
  • Rework ascent logic for granular setups (exa/mfix!1413)
  • Fix chemistry mass balance report (exa/mfix!1407)
  • Virtual mass force missing PIC parcel acceleration (exa/mfix!1399)
  • Impose porous media vfrac in initial interations and projection (exa/mfix!1402)

Code cleanup

  • Add documentation for the new chemistry module (exa/mfix!1387)
  • Make fluid volume fraction constant (exa/mfix!1420)
  • New proj algo for depdt update 2 (exa/mfix!1418)
  • Move local time variables to timer class (exa/mfix!1417)
  • Move ComputeMassOutflow out of EvolveParticles (exa/mfix!1411)
  • Allocate coupling indexes for fluid-only setups (exa/mfix!1405)
  • Follow on to MR 1396 - missed removing an unused function (exa/mfix!1409)
  • Initial restructuring of fluid algorithm (exa/mfix!1408)
  • Refactor code using a separate class for EB (exa/mfix!1396)
  • Generalize transfer coefficient functions #261 (exa/mfix!1406)
  • Change root in integrator inputs from mfix to chemistry (exa/mfix!1403)

CI and test changes

  • none

Subproject updates

  • Latest mpmd needs an amrex bump (exa/mfix!1421)
  • Bump up AMReX (exa/mfix!1415)

Tools updates and fixes

  • Add more data to FilterML processing (exa/mfix!1381)
  • Fix usr rates optimization script to correctly read multi-line inputs (exa/mfix!1401)

MFIX-Exa 25.02 has been released on the website. Please report any issues or bugs on the forum.