- document
- Quaranta, Giuseppe (author), Ekaterinaris, John (author), Barakos, George (author), Filippone, Antonio (author), White, Mark (author), Anderson, David (author), Pavel, M.D. (author) contribution to periodical 2022
- document
-
Schepers, J.G. (author), Boorsma, K. (author), Sorensen, N. (author), Voutsinas, V. (author), Sieros, G. (author), Rahimi, H. (author), Heisselmann, H. (author), Jost, E. (author), Lutz, T. (author), Maeder, T. (author), Gonzalez, A. (author), Ferreira, Carlos (author), Stoevesandt, B. (author), Barakos, G. (author), Lampropoulos, N. (author), Croce, A. (author), Madsen, J. (author)This paper presents final results from the EU project AVATAR in which aerodynamic models are improved and validated for wind turbines on a scale of 10 MW and more. Special attention is paid to the improvement of low fidelity engineering (BEM based) models with higher fidelity (CFD) models but also with intermediate fidelity free vortex wake ...journal article 2018
- document
-
Bakker, Richard (author), Visingardi, Antonio (author), van der Wall, Berend G. (author), Voutsinas, Spyros (author), Basset, Pierre-Marie (author), Campagnolo, Filippo (author), Pavel, M.D. (author), Barakos, George (author), White, Mark (author)The effects of a wind turbine wake on General Aviation and the behaviour of helicopters in the tip vortex of large fixed-wing aircraft has been topic of research in the past years, but less is known about the interactions of helicopters operating in a wind turbine wake. A dedicated GARTEUR Action Group, HC-AG23, consisting of European...conference paper 2018
- document
-
Quaranta, Giuseppe (author), Pavel, M.D. (author), Barakos, George (author), White, Mark (author), Mulder, Max (author)Helicopters are currently used in important applications providing a valuable contribution to society and economic growth. Thanks to their operational flexibility it is possible to accomplish increasingly complex missions. If the expansion of the usage of rotorcraft is to follow the pace of growth achieved by the fixed-wing public transport...journal article 2018
- document
-
Ceyhan, J. G Schepers O (author), Ceyhan, O (author), Boorsma, K. (author), Gonzalez, A. (author), Munduate, X. (author), Pires, O. (author), Sørensen, N. (author), Ferreira, Carlos (author), Sieros, G. (author), Madsen, J. (author), Voutsinas, S. (author), Lutz, T. (author), Barakos, G. (author), Colonia, S. (author), Heißelmann, H. (author), Meng, F. (author), Croce, A. (author)This paper presents the most recent results from the EU project AVATAR in which aerodynamic models are improved and validated for wind turbines on a scale of 10 MW and more. Measurements on a DU 00-W-212 airfoil are presented which have been taken in the pressurized DNW-HDG wind tunnel up to a Reynolds number of 15 Million. These measurements...journal article 2016
- document
-
Sørensen, Niels N. (author), Méndez, B. (author), Muñoz, A. (author), Sieros, G. (author), Jost, E. (author), Lutz, T. (author), Papadakis, G. (author), Voutsinas, S. (author), Barakos, G. N. (author), Colonia, S. (author), Baldacchino, D. (author), Baptista, C.F. (author), Ferreira, Carlos (author)The current paper presents the effort, in the EU AVATAR project, to establish the necessary requirements to obtain consistent lift over drag ratios among seven CFD codes. The flow around a 2D airfoil case is studied, for both transitional and fully turbulent conditions at Reynolds numbers of 3 × 10<sup>6</sup> and 15 × 10<sup>6</sup>. The...journal article 2016
- document
- Masson, C. (author), Johansen, J. (author), Sorensen, N.N. (author), Zahle, F. (author), Bak, C. (author), Madsen, H.A. (author), Politis, E. (author), Schepers, G. (author), Lindenburg, K. (author), Snel, H. (author), Van Rooij, R.P.J.O.M. (author), Arens, E.A. (author), Van Bussel, G.J.W. (author), Van Kuik, G.A.M. (author), Meng, F.Z. (author), Sant, T. (author), Knauer, A. (author), Moe, G. (author), Munduate, X. (author), Gonzalez, A. (author), Ferrer, E. (author), Gomez, S. (author), Barakos, G. (author), Ivanell, S. (author), Schreck, S. (author) report 2008
- document
-
Steijl, R. (author), Barakos, G.N. (author), Badcock, K.J. (author)The focus of this paper is on the parallel computing aspects of multi-physics CFD methods and the implications for the design of a CFD framework encompassing mesh-based and particle-based approaches. In the first part of the paper, the shared-memory parallelisation of a multi-block, structured CFD is described and the parallel performance of...conference paper 2006