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Handbook of Wind Energy Aerodynamics pp 1–27Cite as

Turbulent Inflow Models

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Abstract

This chapter gives a short overview of different methods used for turbulence generation in the field of wind energy. The wind fields can be used as an inflow for computational fluid dynamics or blade element momentum-based simulations. For all presented models, the mathematical background is given, and it is discussed which advantages and drawbacks they have. The main focus lies on statistical properties in terms of one- and two-point statistics. This includes variance, autocorrelations, cross correlations, and spectral properties. First different recycling methods are explained, namely, the weak and the strong recycling methods. In the following sections, synthetic coherent eddy methods are shown which approximate the turbulent properties well. Those are the digital filtering method and the random spots method. Also an inflow model based on continuous-time random walks is demonstrated which considers higher-order statistics, the increment statistics. In the last section, two spectral methods are in the focus which are used in a wide range in the field of wind energy, the Sandia method, and the Mann model.

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Authors and Affiliations

  1. Department of Physics, University of Oldenburg, Oldenburg, Germany

    Sebastian Ehrich

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  1. Sebastian Ehrich
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Correspondence to Sebastian Ehrich .

Editor information

Editors and Affiliations

  1. Fraunhofer Institute for Wind Energy and, Oldenburg, Germany

    Bernhard Stoevesandt

  2. TNO-Energy Research Centre of the Nether, Netherlands Organisation for Applied Sci, Petten, The Netherlands

    Gerard Schepers

  3. Siemens Gamesa Renewable Energy, Brande, Denmark

    Peter Fuglsang

  4. Goldwind Americas, Chicago, IL, USA

    Sun Yuping

Section Editor information

  1. Aerodynamics, CFD and stochastic Dynamics, Fraunhofer Institute for Wind Energy Systems, Oldenburg, Germany

    Bernhard Stoevesandt

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Ehrich, S. (2020). Turbulent Inflow Models. In: Stoevesandt, B., Schepers, G., Fuglsang, P., Yuping, S. (eds) Handbook of Wind Energy Aerodynamics. Springer, Cham. https://doi.org/10.1007/978-3-030-05455-7_42-1

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  • DOI: https://doi.org/10.1007/978-3-030-05455-7_42-1

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-030-05455-7

  • Online ISBN: 978-3-030-05455-7

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