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by wingineer 1875 days ago
Interesting paper. When I refer to "wake blockage", think of the turbines in the middle of a huge grid of machines. The energy in incoming wind on any side of the farm is mostly extracted by the outer turbines. The inner turbines typically produce ~15-20% less energy due to this effect. Also, the wind hitting them is more turbulent/"dirty" as it recovers back to free-stream velocity behind the front row of machines, which can cause abnormal fatigue patterns.

That's definitely of interest to me, although I think that manufacturers are interested in it. Many manufacturers are very conservative with installed/environmental conditions of their production machines and want to minimize risks, instead of potentially alienating a developer by suggesting a scheme that could fatigue turbines or have other unintended consequences. If anything, the paper suggests to me that if adopted, manufacturers could sell even more turbines!

1 comments

It's very possible that I misinterpreted the situation as effectively I got to this information through an overheard in discussions with other fluid dynamicists in school. I thought the information presented is kind of interesting, so I was surprised that no one continued to pursue this avenue of research. I'm glad that you find this interesting, perhaps this knowledge could be put to good use. Although, there may be there are other factors that I'm not aware of impacting the real world performance of this, as my specialty is not in wind turbines (not yet anyway).