Abstract
We examined the effects of the polymer additives on statistically steady and homogeneous turbulence by direct numerical simulations (DNS) of turbulence coupled with the Brownian dynamics (BD) simulations of the enormous number of FENE-dumbbells. We observed a reduction of the energy dissipation rate and a decrease of the acceleration variance of fluid particle by the effects of polymer additives. We found that these were consistent with the results of recent experimental and numerical studies. The efficiency of the large-scale parallel computations was also examined.
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