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Download e-book for iPad: Nonlinear Water Waves by Lokenath Debnath

By Lokenath Debnath

ISBN-10: 0122084373

ISBN-13: 9780122084379

Wave movement in water is without doubt one of the such a lot extraordinary observable phenomena in nature. in the course of the 20th century, improvement of the linearized thought of wave movement in fluids and hydrodynamic balance has been regular and demanding. within the final 3 a long time there were amazing advancements in nonlinear dispersive waves in most cases, nonlinear water waves particularly, and nonlinear instability phenomena. New strategies are actually on hand for waves modulatedin either area and time, which convey new phenomena as varied as solitons, resonant interactions, side-band instability, and wave-breaking. different achievements contain the invention of soliton interactions, and the Inverse Scattering remodel procedure forfinding the categorical designated resolution for numerous canonical nonlinear partial differential equations. This monograph is the 1st to summarize the study on nonlinear wave phenomena over the last 3 many years, and it additionally provides a number of purposes in physics, geophysics, and engineering.

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Nonlinear Water Waves by Lokenath Debnath PDF

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In the Southern Hemisphere the water is able to flow around the entire globe, driven by the strong westerly winds at these latitudes. Sub-polar gyres exist in the Weddell and Ross Seas, poleward of this Antarctic Circumpolar Current. The surface flow in the tropics consists of strong westward flowing currents at, and near, the equator. These are extensions of the tropical arm of the sub-tropical gyres. Between these two westward currents a counter-current, 18 Fig. 15. The global surface current system.

There is also typically a strong eastward current below the surface on the equator, the equatorial under-current. The equatorial currents are intimately coupled with the atmosphere and will be discussed further in Chapters 2 and 5. The deep circulation, shown in Fig. 16, conveys water that has sunk in the polar regions throughout the world oceans. In the Greenland and Norwegian Seas during winter the surface waters are strongly cooled making them denser. This dense water then overturns, probably in very localized regions up to a few tens of kilometres in diameter.

Infra-red radiation from within the atmosphere enters the ocean; it also leaves the ocean to warm the atmosphere. There are also other mechanisms for heat exchange. The direct physical contact of the sea and air means that there is exchange of energy through collision of molecules in the surface layer of each fluid. This energy is known as sensible heat. There will also be an exchange of the molecules themselves, generally resulting in net evaporation, and therefore transfer of latent heat, from the water surface.

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Nonlinear Water Waves by Lokenath Debnath


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