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Originally Posted by Les
Have you anything similar for "one of the principles in the operation of the G4" ?
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Nothing I am willing to discuss.
Actually the effect is not something that I've ever seen modelled mathematically and I do admit to somewhat fumbling in the dark myself with it through extrapolating and modifying similar models. Overall I seem to keep hitting the mark, with theory matching up with results most of the time.
The nature of the problem has more to do with the elements not impacting the fluid as much when the fluid is more viscous. The closest analogy I guess would be stirring a cup of water as opposed to a cup of honey. The effect of the stirrer on water has lingering effects, but when stirring honey the effects dissipate very soon after the stirrer passes. The problem is not so much directly related to how the viscosity affects the convectional process, but how the viscosity affects the turbulence enhancement down the track.
Sorry Les, I know that you really want some hard numbers and maths for all this. Sadly I am partially unable to explain it adequately in theory, and even for what I do have, I am unwilling to share at this point in time.