Spatial structure of surface wind over the ocean

Coherence characteristics of fluctuating lift forces for rectangular shape with various fairing decks

“…By using the approximate functions of the parameter, we finally propose empirical functions of the coherence of the fluctuating lift force and compare them with the experimental results. Davenport (1961) expressed the coherence of fluctuating wind by the following equation: Subsequently, various coherence functions for fluctuating wind were proposed by Naito (1983), Kristensen and Jensen (1979), Irwin (1977), and Mann et al (1991). Furthermore, coherence functions for fluctuating pressures and forces were proposed by Hjorth-Hansen et al (1992), Larose and Mann (1998), Jakobsen (1997), and Kimura et al (1997).…”

Turbulence in a coastal environment: the case of Vindeby

“…It should be noted that the influence of the sea surface elevation on the vertical turbulence was not clearly visible in the one-point vertical velocity spectra S w , except for H s > 1.2 m, where a weak spectral peak near 0.2 Hz was distinguishable. The wave-induced wind component is generally much less compared to the wind turbulence (Weiler and Burling, 1967;Kondo et al, 1972;Naito, 1983). An exception is the case of weak wind and swell conditions which are more likely to result in the observation of a sharp spectral peak near f p in the S w spectrum.…”