A FENE-P k-ε turbulence model for low and intermediate regimes of polymer-induced drag reduction

► Two-equation turbulence model for FENE-P fluids for up to intermediate drag reduction. ► Modeled transport equation of rate of dissipation includes viscoelastic destruction. ► Closure for the nonlinear term in conformation equation based on exact equation. ► Improved closures for viscoelastic stress work. ► New contribution to viscoelastic turbulent diffusion.