Posters
Come meet the poster presenters to ask them questions and discuss their work
We would like to invite you to come and see the posters at our upcoming conference. The posters will showcase a diverse range of research topics, and will give delegates an opportunity to engage with the authors and learn more about their work. Whether you are a seasoned researcher or simply curious about the latest developments in your field, we believe that the posters will offer something of interest to everyone. So please join us at the conference and take advantage of this opportunity to learn and engage with your peers in industry and the academic community.
PO450: Reducing structural loads via advanced metocean analysis: wind-sea, swell, and atmospheric stability
Jorge Garza, Senior Specialist, C2Wind
Abstract
The development of offshore wind farms requires detailed evaluations of wind, sea state, currents, and water level conditions, along with other environmental variables. Despite their interdependence, wind resource and metocean studies are often treated as separate disciplines, carried out by distinct specialists. Yield analysts focus on hub-height wind speeds, often disregarding surface wind and sea state, while metocean experts prioritize surface winds, waves, and currents, with limited attention to the atmospheric boundary layer (ABL) and its influence on turbine behaviour and design load effects. Technically, wind across the ABL, sea state, and currents are deeply interlinked. Atmospheric stability affects wind-wave correlations and turbulence, and the relative importance of wind-sea and swell waves. Every offshore site presents a unique combination of these phenomena. Accurate characterization of these interactions through measurements and models is essential, yet the current practice in metocean studies often does not account for differences in wind-sea and swell climate, as well as atmospheric stability and how these collectively affect wind-wave correlations and thereby loads. To address this, the present study analyses several methods in addressing the metocean conditions for design: * Total sea state assuming no variation of stability conditions * Separation of wind sea and swell through 2D spectral Hindcast data assuming no variation of stability conditions * Separation of wind sea and swell through 2D spectral combined with atmospheric stability and account for the coherent ambient turbulence and wind shear. Load calculation results for each of these scenarios are presented, highlighting that loads and tonnages can be significantly reduced when accounted for these effects.
No recording available for this poster.
