Andre Holanda Siqueira C Palmeira
Offshore vertical wind extrapolation: literature review and unified assessment of most-based profile formulations.
Rel. Giuseppe Giorgi, Alberto Ghigo. Politecnico di Torino, Corso di laurea magistrale in Ingegneria Per L'Ambiente E Il Territorio, 2026
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Abstract
his thesis investigates methods to enhance offshore wind-speed vertical extrapolation in scenarios where only near-surface measurements are available and hub-height data are scarce. The analysis targets heights relevant to modern wind turbines (30–200 m) and typical off- shore environments, emphasizing the significant influence of atmospheric stability, sea-surface roughness, and boundary-layer structure on the mean wind profile. A unified computational pipeline is developed to estimate vertical wind profiles by applying Monin–Obukhov Similarity Theory (MOST) alongside several stability-dependent formula- tions. The methodology integrates a classical logarithmic profile with stability corrections, a reformulation incorporating a boundary-layer height term, and a Gryning-type correction based on an empirical mixed-layer length.
Four widely used stability functions (Businger–Dyer, Jiménez, Holtslag–de Bruin, and Brutsaert) are implemented within their respective validity ranges
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