SST-TG-P1F4R3200: Decaying Stably-Stratified Turbulence (SST), Initialized Using Taylor-Green Vortices (TG) at Prandtl Number Pr=1, Froude Number Fr=4, Reynolds Number Re=3200

Dataset · Thu Apr 03 00:00:00 EDT 2025

DOI:https://doi.org/10.13139/OLCF/2530508· OSTI ID:2530508

de Bruyn Kops, Stephen M. ^[1]; Riley, James J. ^[2]; Couchman, Miles M. P. ^[3]; Gopalakrishnan Meena, Muralikrishnan ^[4]

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1. University of Massachusetts Amherst; ORNL
2. University of Washington
3. York University
4. Oak Ridge National Laboratory

This dataset comprises direct numerical simulations (DNS) of decaying stably-stratified turbulence influenced by a linear background density gradient, initialized using an array of Taylor-Green vortices, as described in [Riley & de Bruyn Kops (2003)](https://doi.org/10.1063/1.1578077). The initial Prandtl, Froude, and Reynolds numbers are (Pr, Fr, Re) = (1, 4, 3200). A total of 15,000 snapshots are recorded at uniform time intervals, each with a spatial resolution of 512x512x256 grid points. Four flow variables are associated with each snapshot: the three velocity components (u,v,w) and the perturbed density field (rho) away from the background gradient. All fields are stored in binary format (32-bit little-endian), each with a size of 255 MB, yielding a total dataset size of 15.3 TB. Further details are referenced in the attached README file, and a current list of publications and associated analysis tools are provided at https://stratified-turbulence.github.io/web/.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Oak Ridge Leadership Computing Facility (OLCF); University of Massachusetts, Amherst, MA (United States)
• Sponsoring Organization: U.S. Office of Naval Research
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 2530508
• Country of Publication: United States
• Language: English

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