How are residuals calculated in MFIX?
I see this in the MFIX output:
Timestep walltime, PIC solver: 9.718 s
Time = 8.07704 Dt = 0.10000E-02
Nit P0 U0 V0 Max res
1 2.1E-07 2.2E-08 1.9E-04 V0
2 1.4E-07 1.6E-08 1.4E-04 V0
Timestep walltime, fluid solver: 3.025 s
PIC NITs: 55 Total PIP: 399497
What does P0, U0 and V0 mean here?
Is it the residual for pressure, energy, and momentum conservation?>
- P0 Gas pressure
- PM Solids phase M pressure
- R0 Gas density
- RM Solids phase M density
- U0 Gas phase U-velocity
- V0 Gas phase V-velocity
- W0 Gas phase W-velocity
- UM Solids phase M U-velocity
- VM Solids phase M V-velocity
- WM Solids phase M W-velocity
- T0 Gas temperature
- TM Solids phase M temperature
- GM Solids phase M granular temperature
- X0NN Gas phase species NN mass fraction
- XMNN Solids phase M species NN mass fraction
- K0 K-Epsilon model residuals
