energy cascade پیشار ِ کاروژ peyšâr-e kâruž
*Fr.: cascade d'énergie*
The → *turbulent* process whereby
→ *kinetic energy* is transformed into heat by the action
of nonlinear coupling which transfers
the energy from large eddies (→ *eddy*) to smaller and
smaller eddies, finally arriving at → *dissipative*
scales dominated by → *viscosity*
(direct cascade). In the simplest case (3D homogeneous hydrodynamic turbulence),
the resulting energy distribution is the → *Kolmogorov spectrum*.
The reverse process also exists (inverse cascade) whereby energy is transferred to larger
and larger eddies. → *energy*; → *cascade*. |