DNS 1-6 Storage Format
Storage Format
The volume data provided is stored in the XML Parallel vtkUnstructuredGrid format, e.g, filename.pvtu [1]. The Parallel data format does not actually contain any data but references other serial files (Serial vtkUnstructuredGrid) containing the data for each grid partition used for the computation, e.g., filename_partition_number.vtu. Both the .pvtu (or any .vtu) file can be easily read through the open-source Paraview software, a multi-platform application for data analysis and visualization [2]. Datasets are delivered as compressed file (.tar.gz).
Statistical data format
The dataset consists of a set of .pvtu files, possibly grouping similar statistics:
- averaged_fields.pvtu:
- averaged velocity,
- averaged pressure,
- averaged density,
- averaged temperature,
- Reynolds_stress.pvtu: all the 6 components of the Reynolds stress tensor,
- Favre_triple_velocity_correlation.pvtu: all the 10 components of the triple velocity correlation,
- pressure_velocity_correlation.pvtu: the 3 components of the pressure-velocity correlations,
- scales.pvtu:
- Taylor microscale,
- Kolmogorov length scale,
- Kolmogorov time scales,
where and range between 1 and 3 and , , are alias of , , .
References
Contributed by: Alessandro Colombo (UNIBG), Francesco Carlo Massa (UNIBG), Jean-Baptiste Chapelier (ONERA) — University of Bergamo (UNIBG), ONERA
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