Two-dimensional homogeneous isotropic fluid turbulence with polymer additives
Two-dimensional homogeneous isotropic fluid turbulence with polymer additives
We carry out an extensive and high-resolution direct numerical simulation of homogeneous, isotropic turbulence in two-dimensional fluid films with air-drag-induced friction and with polymer additives. Our study reveals that the polymers (a) reduce the total fluid energy, enstrophy, and palinstrophy; (b) modify the fluid energy spectrum in both inverse- and …