Turbulent cascade, bottleneck and thermalized spectrum in hyperviscous flows

Rahul Agrawal, Alexandros Alexakis, Marc E. Brachet +1

In many simulations of turbulent flows the viscous forces $\nu {\nabla }^2\mathbf{u}$ are replaced by a hyper-viscous term $-{\nu }_p(-{\nabla }^2{)}^p\mathbf{u}$ in order to suppress the effect of v…