@article{eprints4029,
          number = {3},
           pages = {5814--5819},
          volume = {47},
            year = {2014},
           title = {Airborne Wind Energy: Airfoil-Airmass Interaction},
          author = {Mario Zanon and S{\'e}bastien Gros and Johan Meyers and Moritz Diehl},
         journal = {IFAC Proceedings Volumes},
       publisher = {Elsevier},
            note = {Proceedings of the 19th World Congress
The International Federation of Automatic Control
Cape Town, South Africa. August 24-29, 2014},
       booktitle = {IFAC World Congress},
             url = {http://eprints.imtlucca.it/4029/},
        abstract = {The Airborne Wind Energy paradigm proposes to generate energy by flying a tethered airfoil across the wind flow at a high velocity. While Airborne Wind Energy enables flight in higher-altitude, stronger wind layers, the extra drag generated by the tether motion imposes a significant limit to the overall system efficiency. To address this issue, two airfoils with a shared tether can reduce overall system drag. A study proposed in Zanon et al. (2013) confirms this claim by showing that, in the considered scenario, the dual-airfoil system is more advantageous than the single-airfoil one. The results computed in Zanon et al. (2013) however, do not model the interaction between the airfoils and the airmass. In this paper, the impact of the airfoil-airmass interaction on the extracted power is studied. As this phenomenon is complex to model, a blade element-momentum approach is proposed and the problem is solved by means of optimal control techniques.}
}