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Wind Wave Growth

Authore(s) : Kern E. Kenyon || Professeur

Volume : (13), Issue : (10), January - 2020

Abstract : A recent formula for the lift force on a low speed wing of circular arc cross-section [1] is adapted to the upward pressure force on the crests of a surface gravity wave propagating in the wind. In both cases, the main feature is the utilization of the air’s compressibility. At and near a wave crest, it is predicted that the air density is increased over the ambient value and that the air density decreases inversely as the square of the upward distance from the radius of curvature of the crest. As a consequence,<span "=""> the air pressure also decreases upward inversely as the square of the same distance. Therefore, an upward pressure force on each crest occurs which presumably will make the crests grow. Growth rates are largest for small wavelengths and large mean slopes of the wave surface. Contrary winds should produce wave growth (not damping) as well as no wind at all.

Keywords :Wind Wave Growth, Compressed Air Boundary Layer

Article: Download PDF Journal DOI : 10/402

Cite This Article:

Wind Wave Growth

Vol.I (13), Issue.I (10)

Article No : 11229

Number of Downloads : 101

References :
Kenyon, K.E. (2021) Lift on a Low Speed Circular Arc Wing Due to Air Compression. Natural Science, 13, 88-90. https://doi.org/10.4236/ns.2021.133008 Snodgrass, F.E., Groves, G.W., Hasselmann, K.F., Miller, G.R., Munk, W.H. and Powers, W.H. (1966) Propagation of Ocean Swell across the Pacific. Philosophical Transactions of the Royal Society of London, 259, 431-497. https://doi.org/10.1098/rsta.1966.0022 Kenyon, K.E. (2020) Frictionless... More
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