Thanks antonima and kmarinas86!
I had thought about this in terms of energy being transferred from smaller to larger spatial scales (from eddy to mean flow or constructive interference) but am still not very clear why there is a net transfer from smaller to larger scales. Would it be because...
I'm thinking of absorption of infrared radiation by gas molecules. This interaction results in an increase in vibrational KE. For the kinetic definition of temperature only translational energy is considered. Nevertheless as gases absorb infrared their temperature goes up. What are the important...