OpenFOAM guide/Table of common fields

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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}