Perlekar, Prasad and Mitra, Dhrubaditya and Pandit, Rahul (2010) Direct numerical simulations of statistically steady, homogeneous, isotropic fluid turbulence with polymer additives. In: Physical Review E - Statistical, Nonlinear and Soft Matter Physics, 82 (6, Par).
Numeric.pdf - Published Version
Restricted to Registered users only
Download (819Kb) | Request a copy
We carry out a direct numerical simulation (DNS) study that reveals the effects of polymers on statistically steady, forced, homogeneous, and isotropic fluid turbulence. We find clear manifestations of dissipation-reduction phenomena: on the addition of polymers to the turbulent fluid, we obtain a reduction in the energy dissipation rate; a significant modification of the fluid-energy spectrum, especially in the deep-dissipation range; and signatures of the suppression of small-scale structures, including a decrease in small-scale vorticity filaments. We also compare our results with recent experiments and earlier DNS studies of decaying fluid turbulence with polymer additives.
|Item Type:||Journal Article|
|Additional Information:||Copyright of this article belongs to The American Physical Society.|
|Date Deposited:||03 Mar 2011 12:30|
|Last Modified:||03 Mar 2011 12:30|
Actions (login required)