Free nonswirling turbulent jets, characterized by their high mixing efficiency and chaotic flow behavior, have a range of practical applications across various industries and scientific fields, such as environmental pollutant dispersion, mixing processes in chemical engineering, combustion systems, cooling and heating applications, spray and atomization processes, wind tunnel testing, and fluid dynamics research. The present study investigates the isothermal nonswirling turbulent jet in an axial-tangential swirl burner with a Reynolds number (Re) of 21,800. Numerical simulations using a shear stress transport (SST) k-omega turbulence model were conducted for an unconfined jet case with zero geometric swirl number (Sg = 0). The mean radial, axial, and tangential velocities in both vertical and horizontal planes focusing on the near-exit region of the nozzle were analyzed for unconfined conditions. The obtained results for both these planes are compared with previous experimental data, and the present study findings demonstrate strong agreement with the experimental results.