[Paraview] Best format for time dependent datasets (polygonal mesh) with constant topology

[Manuel González]

I am planning to use Paraview to post-process results from my in-house
developed simulation software. 

After reading the “Paraview Guide”, the “File Formats for VTK” and googling
data formats, I still find very difficult to select the data format (among
those supported by Paraview) which is more appropriate to my needs:

- Type of dataset: polygonal mesh. 
- Time dependent. Topology is constant over time, but geometry (point
coordinates) and attributes are not. 
- Dataset size: 1e5 points, 1e5 lines, 1e5 2D polygons, 2-4 attributes per
line and polygon, 100-500 time steps.

Of course, I would like to avoid writing the same (constant) topology for
each time step. 
And it would be great if the topology could be stored in a separate file
from the rest of the dataset (I often run several simulations for the same
topology).

I would appreciate any help to select the right data format for this kind of
dataset.

Best regards,
Manuel

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Manuel J. Gonzalez Castro
Laboratorio de Ingenieria Mecanica
University of A Coruña
Spain
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