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Impact of Aerodynamics on Blade Design

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Introduction to Wind Turbine Aerodynamics

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Abstract

Now having introduced all knowledge from fluid mechanics, it is high time to try to give an overview on what is really used in practical wind turbine blade design. Referring to Chap. 10 and especially Fig. 10.1 we see that with the development of huge offshore wind turbines up to 170 m rotor diameter, a period of exponential growth has started again after some years of dormancy.

So wie die Sache steht, ist das Beste, auf das zu hoffen ist, ein Geschlecht erfinderischer Zwerge, das für alles zu mieten ist (B. Brecht, Life of Galileo, 1941), [6]. (As things are, the best that can be hoped for is a generation of inventive dwarfs who can be hired for any purpose.)

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Notes

  1. 1.

    This open-jet wind tunnel has a comparably high turbulence intensity of more than 1%.

  2. 2.

    This textbook from the late 1980s is surely out-dated but may help to bridge the gap between engineering mechanics and black-box tools like FLEX5 or BLADED.

  3. 3.

    Much of the underlying principle (low induction) has recently been re-introduced for the design of 10\(+\) MW ordinary wind turbines (Chap. 10, [3]).

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  1. Mechanical Engineering Department, University of Applied Sciences, Kiel, Germany

    A. P. Schaffarczyk

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Schaffarczyk, A.P. (2020). Impact of Aerodynamics on Blade Design. In: Introduction to Wind Turbine Aerodynamics. Green Energy and Technology. Springer, Cham. https://doi.org/10.1007/978-3-030-41028-5_9

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  • DOI: https://doi.org/10.1007/978-3-030-41028-5_9

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