arnyk wrote: > Of course turbulence creates drag - that's obvious. However the above > statement shows a lack of understanding about the basics of > thermodynamics. > > The above seems to ignore the fundamentals of energy extraction. I see a > complete lack of appreciation of entropy and its role in energy > conversion. > > > > Of course everybody wants laminar flow in their wind machines and other > airfoils, but that ignores the global consequences of extracting energy > from a flow of air. > > One might be naive and think that the only way to extract energy from a > flow of air is to slow it down. However an improved understanding of > thermodynamics tells us that the overall method is based on increasing > entropy. > > Perhaps the obsession with laminar flow over the airfoil has led to a > lack of realization that the air that has passed over the airfoil by any > means becomes more turbulent downstream of the area of laminar flow. > > > > That is a very imaginative reading! > > Let's be clear - there is no free lunch, never well be and that is the > gist of what the article says. > > However, there are no actual findings of significant climatic changes in > that article. At the most they are suggested, but only vaguely so. > > Of course the changes have to exist, but what they are needs to be > quantified. If there is actual quantification, are please quote it I'm > not finding it. > > Merely finding a change or different is what Golden Ear merchandisers > do. It's called "Raising a concern". It is often actually just FUD. The > evils of high end audio are largely based on unquantified effects that > are actually microscopic and irrelevant to reliably perceived sound > quality. > > > > That would appear to be innuendo and statement of truisms, not actual > identification or quantification of actual effects. I have no doubt > that there are wind shadows. The relevance of the issue is highly > dependent on what they are, not that they exist at all. > > Calling people Confused when the only evidence at hand is based on > speculation and innuendo of unquantified effects suggests things like > poor critical thinking or a desire to extract an emotional toll for the > purposes of personal satisfaction.
Still don't understand what you mean't by 'they can extract significant energy by just making the wind turbulent'. I think they would extract more energy by minimising turbulence, think it's aerodynamics you need to be studying instead of thermodynamics. Touch optimisations http://touchsgotrythm.blogspot.co.uk/ ------------------------------------------------------------------------ SBGK's Profile: http://forums.slimdevices.com/member.php?userid=52003 View this thread: http://forums.slimdevices.com/showthread.php?t=104207 _______________________________________________ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
