Is a direct numerical simulation (DNS) of Navier-Stokes equations with small enough grid spacing and time-step definitely reliable/correct?
Shijie Qin, Yu Yang, Yongxiang Huang, Xinyu Mei, Lipo Wang, Shijun Liao
Journal of Ocean Engineering and Science . 2024, (3): 293 -310 .  DOI: 10.1016/j.joes.2024.04.002