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Direct numerical simulation database of statistically stationary, homogeneous, sheared, stably stratified turbulence

    Adrien Lefauve | Imperial College London
    Miles M.P. Couchman | York University
    Stephen M. de Bruyn Kops | University of Massachusetts Amherst
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Description

This deposit contains the full output of 13 high-resolution direct numerical simulations (DNS) of statistically stationary, homogeneous, sheared, stably stratified turbulence, exploring a two-parameter family of cases across buoyancy Reynolds number Re_b and Prandtl number Pr. The simulations resolve the Kolmogorov scale and, for Pr > 1, the Batchelor scale; the largest case (R10P7) uses a 31680 × 15840 × 7920 grid. In addition to the raw binary files output by the simulation, code for loading, inspecting, slicing and visualising the data is provided, along with a multi-resolution tiled web viewer that allows high-resolution slices to be browsed locally on standard laptop hardware. The raw data are also saved in a complementary sub-cubed Zarr format, allowing users to download arbitrarily selected subvolumes at full or regularly subsampled (strided) resolution on demand, without requiring large local storage or computational resources. Interactive download scripts exploiting the Zarr format are provided. The total size of the repository is approximately 433TB. Further details are referenced in the attached README file, and a current list of publications and associated codebases and analysis tools are provided through the STRATA Turbulence Database https://stratified-turbulence.github.io/web/.

Funding Information

DOE Contract Number

AC05-00OR22725

Originating Research Organization

University of Massachusetts Amherst (US)

Other Contributing Organizations

Imperial College London (UK); Oak Ridge National Laboratory (US); York University (Canada)

Sponsoring Organization

Office of Science (SC)

Project Identifier

CFD135

Related Works

Details

Release Date

October 1, 2026

Subject

ENGINEERING, ENVIRONMENTAL SCIENCES, GEOSCIENCES

Keywords

stratified turbulence, direct numerical simulation, mixing, turbulence, fluid dynamics

Dataset

Dataset Type

AS Animations/Simulations

Other Contract Number(s)

NSERC (RGPIN-2024-06184); UK Natural Environment Research Council, IRF (NE/W008971/1)

Cite This Dataset:

Lefauve, A., Couchman, M., de Bruyn Kops, S. (2026). Direct numerical simulation database of statistically stationary, homogeneous, sheared, stably stratified turbulence. Oak Ridge National Laboratory. https://doi.org/10.13139/OLCF/3409014.

Acknowledgements

This research used resources of the Oak Ridge Leadership Computing Facility at the Oak Ridge National Laboratory, which is supported by the Advanced Scientific Computing Research programs in the Office of Science of the U.S. Department of Energy under Contract No. DE-AC05-00OR22725.