[ChrisKa]

Hello everyone,


I am trying to do a time-averaging of a a velocity field of an LES simulation.
Simulation time is 200s, I only would like to average from 74 s to 200s.
In the end I would like to display the average velocity field in the centreline of my simulation.


My strategy is:
Extract time steps (time steps 73 to 200)
Create a 2D slice at the centreline
Apply temporal statistics and show velocity_average as a color
Add velocity vectors with glyphs



My Makro:
import paraview.simple as pvs


# Acess loaded dataset
data_source = pvs.GetActiveSource()

# Extract specific time steps
extract_time_steps = pvs.ExtractTimeSteps(Input=data_source, TimeStepIndices=range(73, 200))

# Create a 2D slice at y=-0.395
slice_filter = pvs.Slice(Input=extract_time_steps)
slice_filter.SliceType.Origin = [0.0, -0.395, 0.0]
slice_filter.SliceType.Normal = [0, 1, 0]

# Apply the TemporalStatistics (time average)
temporal_stats = pvs.TemporalStatistics(Input=slice_filter)
temporal_stats.ComputeAverage = 1

# Update the pipeline
pvs.UpdatePipeline()

# visualize temporal_stats (time-averaged velocity for the slice)
representation = pvs.Show(temporal_stats)
representation.ColorArrayName = ("POINT_DATA", "Velocity_average")

Now I come across the problem, that the extracted slices only show the flow velocities on the outline of the fluid domain and do not show results over the whole domain. Addtitionally the color array velocity_average has an additional (?) attached.
Of course, the temporal stats are also not working then...


I figured out that the slice function does not show the field data when I apply it to the fluid part. I only get field data when I use the flsgrsimple slice function. I assume that there is a difference in both?
Can somebody help me with that?


Thank you a lot in advance!
Chris