Data files to recreate the figures in A projection method to symmetrize the momentum flux in a vector lattice Boltzmann formulation of hydrodynamics Paul J. Dellar (2025) Phys. Fluids 37, 063606 doi:10.1063/5.0268328 All files except those for Figure 8 are plain text files suitable for plotting in gnuplot. The columns are identified by header comments preceded by # signs. The vorticity fields shown in Figure 8 at the times 0.1, 0.7, 1.0 and 2.0 are in binary files in the following format. The files are little endian using IEEE floating point formats. Each file contains 512 rows and 512 columns. 32 bit integer, number of columns 32 bit integer, number of rows binary64 floating point, time of output binary64 floating point array, vorticity field All the supplied files contain square arrays. binaryplot.m is a MATLAB function to plot one of these files