 Nicolis and Nicolis (1980)  discuss Paltridge's work, and they comment that the behaviour of the entropy production is far from simple and universal.This seems natural in the context of the requirement of some classical theory of non-equilibrium thermodynamics that the threshold of turbulence not be crossed.Paltridge himself nowadays tends to prefer to think in terms of the dissipation function rather than in terms of rate of entropy production.