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Chapitre D'ouvrage Année : 1999

Some Aspects of Wind-Wave Coupling at High Winds: an Experimental Study

Résumé

Experiments were conducted in the IRPHE wind-wave facility in order to study the evidence and occurrence of air-flow separation above short wind waves. An original air-flow separation probe was designed and a Particle Image Velocimetry (PIV) technique in the air close to the surface was carried on. Measurements above steep waves clearly show air-flow separation at the crest, organised vortex motions with reverse flow above the leeward face and reattachment on the windward face of the downstream wave. Occurrence of air-flow separation grows linearly with wave steepness and decreases with wave age. The associated effects on wind-wave coupling are investigated.
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hal-04338962 , version 1 (12-12-2023)

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Jean-Paul Giovanangeli, Nicolas Reul, Marie-Hélène Garat, Hubert Branger. Some Aspects of Wind-Wave Coupling at High Winds: an Experimental Study. S. G. Sajjadi; N. H. Thomas; J. C. R. Hunt. Wind-over-Wave Couplings. Perspectives and Prospects, Oxford University Press, pp.81-90, 1999, 9780198501923. ⟨10.1093/oso/9780198501923.003.0009⟩. ⟨hal-04338962⟩
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