Zobrazeno 1 - 10
of 91
pro vyhledávání: '"N. Angelou"'
Publikováno v:
Atmospheric Measurement Techniques, Vol 16, Pp 6007-6023 (2023)
In moderate to heavy precipitation, raindrops may deteriorate the accuracy of Doppler lidar measurements of the line-of-sight wind velocity because their projected velocity in the beam direction differs greatly from that of air. Therefore, we propose
Externí odkaz:
https://doaj.org/article/9920c32adafb482dbc9680bc102d6ffb
Publikováno v:
Wind Energy Science, Vol 8, Pp 1511-1531 (2023)
We investigate the characteristics of the inflow and the wake of a 6 MW floating wind turbine from the Hywind Scotland offshore wind farm, the world's first floating wind farm. We use two commercial nacelle-mounted lidars to measure the up- and downw
Externí odkaz:
https://doaj.org/article/b95b991eb7814f58a488bb2b573368f6
Publikováno v:
Atmospheric Chemistry and Physics, Vol 22, Pp 2255-2268 (2022)
Solitary trees are natural land surface elements found in almost all climates, yet their influence on the surrounding airflow is poorly known. Here we use state-of-the-art, laser-based, remote sensing instruments to study the turbulent wind field in
Externí odkaz:
https://doaj.org/article/d923f5f880e24465b881958d7065c176
Autor:
T. D. Jackson, S. Sethi, E. Dellwik, N. Angelou, A. Bunce, T. van Emmerik, M. Duperat, J.-C. Ruel, A. Wellpott, S. Van Bloem, A. Achim, B. Kane, D. M. Ciruzzi, S. P. Loheide II, K. James, D. Burcham, J. Moore, D. Schindler, S. Kolbe, K. Wiegmann, M. Rudnicki, V. J. Lieffers, J. Selker, A. V. Gougherty, T. Newson, A. Koeser, J. Miesbauer, R. Samelson, J. Wagner, A. R. Ambrose, A. Detter, S. Rust, D. Coomes, B. Gardiner
Publikováno v:
Biogeosciences, Vol 18, Pp 4059-4072 (2021)
Interactions between wind and trees control energy exchanges between the atmosphere and forest canopies. This energy exchange can lead to the widespread damage of trees, and wind is a key disturbance agent in many of the world's forests. However, mos
Externí odkaz:
https://doaj.org/article/acdb5965a0c648699acb85d6d36ddf17
Autor:
M. P. van der Laan, S. J. Andersen, N. Ramos García, N. Angelou, G. R. Pirrung, S. Ott, M. Sjöholm, K. H. Sørensen, J. X. Vianna Neto, M. Kelly, T. K. Mikkelsen, G. C. Larsen
Publikováno v:
Wind Energy Science, Vol 4, Pp 251-271 (2019)
Numerical simulations of the Vestas multi-rotor demonstrator (4R-V29) are compared with field measurements of power performance and remote sensing measurements of the wake deficit from a short-range WindScanner lidar system. The simulations predict a
Externí odkaz:
https://doaj.org/article/bf55b637f00545dbb68a86aa7032e8f6
Autor:
N. Vasiljević, J. M. L. M. Palma, N. Angelou, J. Carlos Matos, R. Menke, G. Lea, J. Mann, M. Courtney, L. Frölen Ribeiro, V. M. M. G. C. Gomes
Publikováno v:
Atmospheric Measurement Techniques, Vol 10, Pp 3463-3483 (2017)
The long-range and short-range WindScanner systems (LRWS and SRWS), multi-Doppler lidar instruments, when combined together can map the turbulent flow around a wind turbine and at the same time measure mean flow conditions over an entire region su
Externí odkaz:
https://doaj.org/article/fc40e03112c84c74aa7513e0fd1c2a50
Publikováno v:
Wind Energy Science, Vol 2, Pp 329-341 (2017)
This paper combines the research methodologies of scaled wind turbine model experiments in wind tunnels with short-range WindScanner lidar measurement technology. The wind tunnel at the Politecnico di Milano was equipped with three wind turbine mo
Externí odkaz:
https://doaj.org/article/c7332761c9754df5b346aee06ad61c4e
Publikováno v:
Wind Energy Science, Vol 1, Pp 101-114 (2016)
We present shelter measurements of a fence from a field experiment in Denmark. The measurements were performed with three lidars scanning on a vertical plane downwind of the fence. Inflow conditions are based on sonic anemometer observations of a
Externí odkaz:
https://doaj.org/article/b93a28605f9f45209f2e45222e63deae
Autor:
E. Branlard, A. T. Pedersen, J. Mann, N. Angelou, A. Fischer, T. Mikkelsen, M. Harris, C. Slinger, B. F. Montes
Publikováno v:
Atmospheric Measurement Techniques, Vol 6, Iss 7, Pp 1673-1683 (2013)
The aim of this study is to experimentally demonstrate that the time-average Doppler spectrum of a continuous-wave (cw) lidar is proportional to the probability density function of the line-of-sight velocities. This would open the possibility of usin
Externí odkaz:
https://doaj.org/article/fbdf35e16cf54995b084b35fed9b5f44
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