Blar i Bergen Open Research Archive på forfatter "Nybø, Astrid"
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Analysis of turbulence models fitted to site, and their impact on the response of a bottom-fixed wind turbine
Nybø, Astrid; Nielsen, Finn Gunnar; Godvik, Marte (Journal article; Peer reviewed, 2021)This study compares a wind field recommended by the wind turbine design standards to more realistic wind fields based on measurements. The widely used Mann spectral tensor model with inputs recommended by the standard, is ... -
The dynamic response of offshore wind turbines and their sensitivity to wind field models
Haaskjold Myrtvedt, Maylinn; Nybø, Astrid; Nielsen, Finn Gunnar (Journal article; Peer reviewed, 2020)As the rotor diameter of offshore wind turbines increases, an improved understanding of the structure of the turbulent wind field approaching the rotor is important. Present standards for computing wind loads are resting ... -
Evaluation of different wind fields for the investigation of the dynamic response of offshore wind turbines
Nybø, Astrid; Nielsen, Finn Gunnar; Reuder, Joachim; Godvik, Marte; Churchfield, Matthew J. (Journal article; Peer reviewed, 2020)As the size of offshore wind turbines increases, a realistic representation of the spatiotemporal distribution of the incident wind field becomes crucial for modeling the dynamic response of the turbine. The International ... -
The impact of turbulence modelling on large offshore wind turbine response
Nybø, Astrid (Doctoral thesis, 2022-10-28)In order to reduce climate change, a large up-scaling of renewable energy capacity is necessary in the near future. Offshore wind is expected to play a key role in this green shift. The wind conditions offshore are in ... -
Processing of sonic anemometer measurements for offshore wind turbine applications
Nybø, Astrid; Nielsen, Finn Gunnar; Reuder, Joachim (Peer reviewed; Journal article, 2019)Quality assured measurements from offshore masts may provide valuable information of the characteristics of the offshore wind field, which is of high relevance for simulations of offshore wind turbines' dynamic response. ... -
Quasi-static response of a bottom-fixed wind turbine subject to various incident wind fields
Nybø, Astrid; Nielsen, Finn Gunnar; Godvik, Marte (Journal article; Peer reviewed, 2021)In the design of offshore wind farms the simulated dynamic response of the wind turbine structure includes loading from turbulent wind. The International Electrotechnical Commission (IEC) standard for wind turbine design ... -
Sensitivity of the dynamic response of a multimegawatt floating wind turbine to the choice of turbulence model
Nybø, Astrid; Nielsen, Finn Gunnar; Godvik, Marte (Journal article; Peer reviewed, 2022)In the design of offshore wind turbines, it is important to make a realistic estimate of the wind load. This is particularly important for floating wind turbines, having natural frequencies in a frequency range where the ... -
Transitioning remote Arctic settlements to renewable energy systems – A modelling study of Longyearbyen, Svalbard
Ringkjøb, Hans-Kristian; Haugan, Peter M.; Nybø, Astrid (Journal article; Peer reviewed, 2020)As transitioning away from fossil fuels to renewable energy sources comes on the agenda for a range of energy systems, energy modelling tools can provide useful insights. If large parts of the energy system turns out to ...