Large-scale influence of numerical noises as artificial stochastic disturbances on a sustained turbulence
Large-scale influence of numerical noises as artificial stochastic disturbances on a sustained turbulence
We investigate the large-scale influence of numerical noises as tiny artificial stochastic disturbances on a sustained turbulence. Using two-dimensional (2-D) turbulent Rayleigh–Bénard convection (RBC) as an example, we solve numerically the Navier–Stokes equations, separately, by means of a traditional algorithm with double precision (denoted RKwD) and the so-called clean numerical …