Output Line¶
The Output Line statistics provide spatially resolved, time-dependent data sampled along a user-defined output line within the simulation domain. These outputs capture the variation of flow properties along the line at discrete points, enabling detailed analysis of spatial gradients, profiles, and transport behavior. A directory is created for each Output Line with the name ./outputLine_{DynamicName}, where the dynamic name corresponds to the name of the Output Line in the model tree. Within this directory, a separate file is written for each statistics output time, using the format time_{PrintTime}.txt where PrintTime is the physical simulation time. Each file contains the full set of sampled data along the output line at that specific time. Output files are generated at the Statistics Output Write Interval.
Within each file, data is organized such that each row corresponds to a sampling point along the line, and each column corresponds to a statistic listed in the table below.
The position of each sampling point is defined by:
Linear Position: The distance along the output line (from the line origin).
Position X, Y, Z: The absolute spatial coordinates of the sampling point.
All reported quantities (velocity, pressure, scalar fields, turbulence metrics, etc.) are evaluated at these discrete locations along the line.
Statistics |
Units |
Details |
When Appears |
|---|---|---|---|
Time |
s |
simulation time |
|
Age |
s |
fluid mean age |
|
Avg Turb KE |
J/kg |
time-averaged turbulent kinetic energy |
|
Custom Variable |
[dynamic] |
custom variable magnitude |
|
Custom Variable |
[dynamic] |
custom variable magnitude |
|
Custom Variable X |
[dynamic] |
custom variable value |
|
Custom Variable Y |
[dynamic] |
custom variable value |
|
Custom Variable Z |
[dynamic] |
custom variable value |
|
Density |
kg/m^3 |
density after accounting for multiphase, particles, bubbles, and scalar fields |
|
Energy Dissipation Rate |
W/kg |
energy dissipation rate including both resolved and unresolved components |
|
Fluid Viscosity |
m^2/s |
fluid kinematic viscosity |
|
Fluid Volume Fraction |
vf |
fluid volume fraction |
|
Linear Position |
m |
linear position along output line |
|
Particle Set kLa |
1/s |
kLa for particle set |
|
Particle Set Volume Fraction |
vf |
volume fraction for particle set |
|
Position X |
m |
position of point along output line |
|
Position Y |
m |
position of point along output line |
|
Position Z |
m |
position of point along output line |
|
Pressure |
Pa |
pressure |
|
Resolved Shear Stress |
Pa |
resolved shear stress magnitude |
|
Resolved Strain Rate |
1/s |
strain rate magnitude not including unresolved strain |
|
Scalar Field |
[dynamic] |
scalar field value |
|
Sub-Grid Turbulent Viscosity |
m^2/s |
sub-grid turbulent viscosity from LES model |
|
Temperature |
K |
fluid temperature |
|
Time-Avg Energy Dissipation Rate |
W/kg |
time-averaged energy dissipation rate including both resolved and unresolved components |
|
Time-Avg Pressure |
Pa |
time-averaged pressure |
|
Time-Avg Resovled Shear Stress |
Pa |
time-averaged resolved shear stress magnitude |
|
Time-Avg Strain Rate |
1/s |
time-averaged strain rate magnitude |
|
Time-Avg Velocity |
m/s |
time-averaged fluid velocity magnitude |
|
Time-Avg Velocity Magnitude |
m/s |
time-averaged fluid velocity magnitude |
|
Time-Avg Velocity X |
m/s |
time-averaged fluid velocity |
|
Time-Avg Velocity Y |
m/s |
time-averaged fluid velocity |
|
Time-Avg Velocity Z |
m/s |
time-averaged fluid velocity |
|
Velocity |
m/s |
magnitude of fluid velocity |
|
Velocity Magnitude |
m/s |
magnitude of fluid velocity |
|
Velocity X |
m/s |
fluid velocity |
|
Velocity Y |
m/s |
fluid velocity |
|
Velocity Z |
m/s |
fluid velocity |
|
Vorticity |
1/s |
vorticity magnitude |
|
Vorticity Magnitude |
1/s |
vorticity magnitude |
|
Vorticity X |
1/s |
vorticity |
|
Vorticity Y |
1/s |
vorticity |
|
Vorticity Z |
1/s |
vorticity |