Syamlal obrien drag law tuning parameters

Where can I find documentation on how the syamlal obrien is set up in mfix 2016? Or where to find the Umf spreadsheet to determine particle specific coefficients? I have coefficients for my case but I obtained them as tuning parameters a and b and I don’t know which one is DRAG_C1 and DRAG_D1.

See the Minimum Fluidization Velocity Spreadsheets on the documentation section of the website. MFiX Documentation - Multiphase Flow Science Group at NETL

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