The momentum theory of the wind turbine, as usually stated, does not allow interference factors greater than one‐half, although experiment shows that values approaching unity are possible. The theory is extended to remove this contradiction, and the assumptions are at the same time slightly generalized.
Rosenbrock, H.H. (1952), "An Extension of the Momentum Theory of Wind Turbines: A More General Statement of the Theory Than Has Hitherto Been Given Leading to Some Explanation of the Discrepancies with Practice", Aircraft Engineering and Aerospace Technology, Vol. 24 No. 8, pp. 226-227. https://doi.org/10.1108/eb032189
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