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Wake characteristics of pumping mode airborne wind energy systems
Haas, T.; De Schutter, J.; Diehl, M.; Meyers, J. (2019). Wake characteristics of pumping mode airborne wind energy systems. Journal of Physics: Conference Series 1256: 012016. https://hdl.handle.net/10.1088/1742-6596/1256/1/012016
In: Journal of Physics: Conference Series. IOP Publishing: Bristol. ISSN 1742-6588; e-ISSN 1742-6596, more
Peer reviewed article  
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  • Haas, T., more
  • De Schutter, J.
  • Diehl, M.
  • Meyers, J., more
Abstract
    Airborne wind energy is an emerging technology that aims at harvesting wind power at high altitudes. In the present work, we propose a framework combining optimal control and large-eddy simulation to investigate the wake characteristics of large-scale airborne wind energy systems. We consider systems operating in pumping mode which alternate between power-generating and -consuming phases. We investigate the downstream wake development in non-turbulent and turbulent sheared inflow conditions. The optimal system operation leads to a non-uniform radial wake development and results show that the maximal wake velocity deficit for the current system is half the deficit predicted by Betz limit for a conventional wind turbine.
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