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

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/.

本数据集包含受线性背景密度梯度影响的衰减稳定分层湍流的直接数值模拟（direct numerical simulations, DNS），其初始化采用泰勒-格林涡旋阵列，如文献[Riley & de Bruyn Kops (2003)](https://doi.org/10.1063/1.1578077)所述。初始普朗特数（Prandtl number）、弗劳德数（Froude number）和雷诺数（Reynolds number）为(Pr, Fr, Re) = (1, 4, 3200)。共记录15000个快照，时间间隔均匀，每个快照的空间分辨率为512×512×256网格点。每个快照包含四个流场变量：三个速度分量（u、v、w）和偏离背景梯度的扰动密度场（perturbed density field, rho）。所有场以二进制格式（binary format，32位小端序）存储，每个场大小为255 MB，数据集总大小为15.3 TB。更多细节参见附件README文件，当前已发表文献列表及相关分析工具可通过https://stratified-turbulence.github.io/web/获取。