Question

Small-scale eddy motions have ___________

(a) does not vary from the energy losses of the large-scale eddy motions

(b) the same order of energy losses as the large-scale eddy motions

(c) decreased energy losses

(d) increased energy losses

I got this question in unit test.

I'm obligated to ask this question of Turbulence Modelling in division Turbulence Modelling of Computational Fluid Dynamics

Answer 1

Correct option is (d) increased energy losses

For explanation I would say: Small-scale eddy motions are dissipative. The energy associated with these motions is converted into thermal internal energy. This leads to increased energy losses associated with the turbulent flows.