Coupled Velocity–Temperature Inflow Dataset for Non-isothermal Large-Eddy Simulation

This dataset presents time-resolved non-isothermal turbulent inflow data generated using the precursor method with large-eddy simulation (LES). The auxiliary computational domain reproduces a thermally stratified wind-tunnel configuration to generate a fully developed turbulent boundary layer under unstable conditions. Synchronized velocity and temperature fluctuations are stored on a sampling plane to form a reusable inlet boundary database. The dataset is organized for direct implementation as a time-varying inlet boundary condition in OpenFOAM. It provides turbulent inflow boundary data for LES corresponding to the wind-tunnel benchmark Cases J and L, which represent flow fields around a 1:1:2 isolated building and within a building array under unstable stratification conditions provided by the Architectural Institute of Japan.
BoundaryData4.1.zip contains boundary data files with headers and is suitable for OpenFOAM versions that require header information. BoundaryData2006.zip contains boundary data files without headers and is suitable for OpenFOAM versions that do not require header information.