# OpenFOAM guide/Table of common fields

(Redirected from Uguide table of fields)

This table should give a list of the field names commonly written by the OpenFOAM-Solver.

It was inspired by the discussion What's the meaning of variables in the computed results in the Forum:

Fields written by OpenFOAM
Filename Description Dimension
U Velocity $\frac{m}{s}$
U_0 Velocity at previous timestep (needed for restarting higher order time-stepping schemes) $\frac{m}{s}$
phi Flow through cell faces. Depends on whether the solver is for incompressible or compressible flow. incompressible flow: $\frac{m^3}{s}$
compressible flow: $\frac{kg}{s}$
p Pressure $\frac{m^2}{s^2}$
epsilon Turbulence dissipation rate $\frac{m^2}{s^3}$
k Turbulence kinetic energy $\frac{m^2}{s^2}$
rho Gas density $\frac{kg}{m^3}$
alpha Dispersed phase volume fraction (Dimensionless, usually
within the interval [0, 1])
Theta Granular temperature $\frac{m^2}{s^2}$