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normandajc

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  1. This link is a new version of preprint. I think the notion of kinetic energy and potential energy is more detailed. A time parameter has been added to respect energy conservation for fast-speed wind turbines. I would like to have your opinion? https://zenodo.org/records/10721642
  2. here is a new version of the prepublication https://hal.archives-ouvertes.fr/hal-01982516
  3. normandajc joined the community
  4. I have written a preprint on the calculation of a wind turbine power. Betz's theory is correct, it is made from the calculation of the kinetic energy of the fluid. I do not question Betz's theory or that of precursors like Lanchester. This calculation does not take into account the constraints on the structure of the wind turbine. The hydrofoils on the sailboats allow to lift the sailboat and to reduce the forward forces. The wind allows the sailboat to move forward but also allows it to be lifted and yet the wind has not been doubled. Instead of creating stress on a keel, we create a flow around a profile to make the sailboat lift. This is potential energy that is transformed into kinetic energy. For a wind turbine, we can eventually transform stresses into additional energy production. My preprint deals with this subject and I would like to have your opinion. A paper similar to my preprint is being submitted. Before giving your opinion, I let you read my preprint https://www.preprints.org/manuscript/202108.0191/v2

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