The Proceedings of the Fluids engineering conference
Online ISSN : 2424-2896
2012
Session ID : G714
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G714 Estimate of wave length at extremely high wind speeds
Naohisa TAKAGAKITakenori KURAMOTOHiroyuki KAMIUCHIKoji IWANORyoichi KUROSESatoru KOMORI
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Abstract
Wave slope was evaluated by measuring both significant wave height and length in a broad wind speed range. Experiments were conducted in a high-speed wind wave tank. The results show that the significant wave length increases steeply with free-stream wind-speed at low wind speeds ( U_∞ <15 m/s), increases gradually at middle wind speeds (15 ≦ U_∞ < 27 m/s), and increases steeply again at extremely high wind speeds (U_∞>= 27 m/s). The wave slope increases with the free-stream wind-speed in the low wind speed region ( U_∞ <15 m/s), but it reaches a constant value in the high wind speed region (U_∞ ≧ 15 m/s). These results suggest that the trend of wave development in the high wind speed region is different from that in the low wind speed region owing to wave breaking.
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© 2012 The Japan Society of Mechanical Engineers
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