|July 9, 2012, 11:07||
no output from particle pathlines
Bart van Stratum
Join Date: Jul 2012
Location: Hamburg / Wageningen
Posts: 1Rep Power: 0
The 'problem' is solved; it was actually working ok from the beginning, I just didn't realize that the trajectories are plotted progressively and that you need to advance a bit in time to actually see the trajectories
I'm trying to plot the trajectories of Lagrangian particles, calculated in our LES code. At the moment I'm saving the data in .vtk format (postprocessing, obtained from NetCDF) as Polydata (points) with each time step in a different file. This works nicely for simple visualization, stepping through the different time steps, etc., but I can't calculate / plot particle pathlines from this data.
The data is stored as (for now in ASCII...):
## xxxxx1.vtk # vtk DataFile Version 3.0 Lagrangian particles from UCLA-LES ASCII DATASET POLYDATA POINTS 5 float 792.325684 12.585052 12.494672 792.326172 36.116016 12.503577 792.322937 59.644337 12.495874 792.324951 83.180580 12.498446 792.324951 106.728493 12.502646 ## xxxxx2.vtk # vtk DataFile Version 3.0 Lagrangian particles from UCLA-LES ASCII DATASET POLYDATA POINTS 5 float 754.979492 14.267145 12.471093 754.939880 37.809696 12.515448 754.941772 61.322544 12.491261 754.950317 84.875916 12.486872 754.942749 108.422569 12.524429
1) Am I missing something; are there additional steps necessary to create the pathlines of am I doing something wrong?
2) Is this the correct way to go, saving all time steps in different files?
Any help will be greatly appreciated!
Last edited by julietbravo; July 9, 2012 at 13:36. Reason: 'Problem' solved
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