OpenFOAM is distributed with a set of utilities that
perform specific post-processing tasks, as listed below.
Post-processing the velocity field
Co
Configurable graph drawing program
divU
Calculates and writes the divergence of velocity field U at each time in a database
enstrophy
Calculates and writes the enstrophy of velocity field U at each time in a database
Lambda2
Calculates and writes the second largest eigenvalue of the sum of the square of the symmetrical and anti-symmetrical parts of the velocity gradient tensor, at each time in a database
Mach
Calculates and writes the local Mach number from the velocity field U at each time in a database
magGradU
Calculates and writes the scalar magnitude of velocity field U at each time in a database
magU
Calculates and writes the scalar magnitude of the gradient of the velocity field U at each time in a database
Pe
Calculates and writes the Pe number as a surfaceScalarField obtained from field phi at each time in a database
Q
Calculates and writes the second invariant of the velocity gradient tensor for each time in a database
streamFunction
Calculates and writes the stream function of velocity field U at each time in a database
Ucomponents
Writes the three scalar fields, Ux, Uy and Uz, for each component of the velocity field U at each time in a database
uprime
Calculates and writes the scalar field of uprime () at each time in a database
vorticity
Calculates and writes the vorticity of velocity field U at each time in a database
Post-processing the stress field
R
Calculates and writes the Reynolds stress R for the current time step
Rcomponents
Calculates and writes the scalar fields of the six components of the Reynolds stress R for each time in a database
stressComponents
Calculates and writes the scalar fields of the six components of the stress tensor sigma for each time in a database
Post-processing at a wall
checkYPlus
Calculates and reports yPlus for all wall patches, for each time in a database
wallGradU
Calculates and writes the gradient of U at the wall, wallGradU, for the current time step
wallShearStress
Calculates and writes the wall shear stress for the current time step
yPlusLES
Calculates the yPlus of the near-wall cells for an LES
Other post-processing
engineCompRatio
Calculate the geometric compression ratio. Note that if you have valves and/or extra volumes it will not work, since it calculates the volume at BDC and TCD
liftDrag
Calculates the lift and drag for each time in a database.
postChannel
Post-processes data from channel flow calculations
ptot
For each time in a database: calculate the total pressure
sample
Sample field data with a choice of interpolation schemes, sampling options and write formats
sampleSurface
Surface sampling. Runs in parallel (but does not merge points)
wdot
Calculates and writes wdot for each time in a database