9855
26.94
100
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 : 100
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
- 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 Surface Gravity Waves. Natural Science, 12, 199-201.
https://doi.org/10.4236/ns.2020.124017
- Barnett, T.P. and Kenyon, K.E. (1975) Recent Advances in the Study of Wind Waves. Reports on Progress in Physics, 38, 667-729. https://doi.org/10.1088/0034-4885/38/6/001
... Less
- 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 Surface Gravity Waves. Natural Science, 12, 199-201. https://doi.org/10.4236/ns.2020.124017
- Barnett, T.P. and Kenyon, K.E. (1975) Recent Advances in the Study of Wind Waves. Reports on Progress in Physics, 38, 667-729. https://doi.org/10.1088/0034-4885/38/6/001