44 citations · 107 across the 13 of their papers we have counts for
16 papers
Patchy Polymeric Scalar Turbulence
Rahul K. Singh, Marco E. Rosti
Turbulent polymeric flows show strong deviations from Kolomogorov-like behaviour resulting from more complex dynamics compared to Newtonian turbulence. We now study the nature of m…
The invariant rate of energy extraction by polymers in turbulence
Alessandro Chiarini, Rahul K. Singh, Marco E. Rosti
Polymeric turbulence, flows of fluids with dilute polymer additives at high Reynolds numbers, exhibits striking deviations from the Kolmogorovean behaviour of Newtonian turbulence.…
Energy, enstrophy and helicity transfers in polymeric turbulence
Alessandro Chiarini, Rahul K. Singh, Marco E. Rosti
We characterise the scale-by-scale transfers of energy, enstrophy and helicity in homogeneous and isotropic polymeric turbulence using direct numerical simulations. The microscale…
Extending Kolmogorov Theory to Polymeric Turbulence
Alessandro Chiarini, Rahul K. Singh, Marco E. Rosti
The addition of polymers fundamentally alters the dynamics of turbulent flows in a way that defies Kolmogorov predictions. However, we now present a formalism that reconciles our u…
The interplay of plasticity and elasticity in elastoviscoplastic flows in wavy channels
Mohamed S. Abdelgawad, Simon J. Haward, Amy Q. Shen +1
Elastoviscoplastic (EVP) fluids, which exhibit both solid-like and liquid-like behavior depending on the applied stress, are critical in industrial processes involving complex geom…
Transient inverse energy cascade in free surface turbulence
G. Boffetta, A. Mazzino, S. Musacchio +1
We study the statistics of free-surface turbulence at large Reynolds numbers produced by direct numerical simulations in a fluid layer at different thickness with fixed characteris…