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A laboratory experiment on surface wave attenuation due to underwater turbulence by James Edward Paquin

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Published by Naval Postgraduate School in Monterey, California .
Written in English

Subjects:

  • Oceanography

Book details:

ID Numbers
Open LibraryOL25181627M

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Download PDF: Sorry, we are unable to provide the full text but you may find it at the following location(s): ersitylibrary (external link)Author: James Edward. Paquin. Flexible plates or membranes located on the sea surface can be effective for attenuation waves approaching the beach. The most efficient structures should be found through comprehensive research using developed experiments and theory. Our experimental work was focused on the wave propagation and attenuation passing through floating elastic : Igor Shugan, Igor Shugan, Ray Yeng Yang, Yang Yih Chen. arXiv:nlin/v4 [] 8 Nov Gravity surface wave turbulence in a laboratory flume Petr Denissenko1, Sergei Lukaschuk1 and Sergey Nazarenko2 1 Fluid Dynamics Laboratory, the University of Hull, Hull, HU6 7RX, UK 2 Mathematics Institute, The University of Warwick, Coventry, CVAL, UK October 1, Abstract We present experimental results for water wave turbulence excited by. recent experiments of elastic wave turbulence on the surface of a thin plate [10, 68] show that the energy spectrum is in strong disagreement with the predictions of weak turbulence [29]. In this paper, I will focus on the hydrodynamic case of wave turbulence. In § 2, I will first review the previous results on this issue. Then, the main.

  [1] A concept of wave‐amplitude‐based Reynolds number is suggested which is hypothesised to indicate a transition from laminarity to turbulence for the wave‐induced motion. If the hypothesis is correct, the wave‐induced motion can be turbulent and the depth of upper ocean mixing due to such wave‐generated turbulence can be predicted based on knowledge of the wave climate. 2. With the assistance of David Drazen, laboratory experiments have been carried out in which an incident wave train of almost uniform steepness ak in the range wave steepnesses greater than an interesting instability was. Internal Waves in Laboratory Experiments B. R. Sutherland1, T. Dauxois2 T. Peacock3 Abstract. Recent methods developed to generate and to analyze internal waves in lab-oratory experiments have revealed important insights that sometimes guide and some-times challenge theoretical predictions and the results of numerical simulations. Here we.   We are not the first to study energy dissipation and air entrainment in breaking laboratory waves. For example, laser-based imaging of turbulence beneath focused wave packets has been reported by Rapp and Melville (), Melville et al. (), and Drazen and Melville ().These well-cited studies have helped quantify the coherent and turbulent motions induced by laboratory breaking waves.

This paper reports a set of laboratory data for breaking waves in the water of intermediate depth. A monochromatic wave train with a wave height of cm and a wavelength of cm was generated in a water depth, h, of 20 cm. The wave train breaks consistently at a distance of about 2 h from the wave generator. The instantaneous velocity fields under the breaking waves on a two-dimensional. Line-of-sight link is widely used in common free-space optical (FSO) laser communications between two fixed locations. While in practical underwater wireless optical communications (UWOC), the environment is relatively complicated. In some scenarios there exist irremovable obstacles, which block the line-of-sight optical link. Fortunately, the air-water interface can function as a natural. An original laboratory method of investigation of surface wave damping due to turbulence is described. The method is based on the parametric excitation of standing surface waves (so-called Faraday ripples) and simultaneous and independent generation of turbulence. height while generating turbulence and internal waves in the lee of localized topography [Baines and Hoinka, ; Sutherland, ; Aguilar and Sutherland, ]. Laboratory experiments have entered a renaissance thanks to digitization technology, advancement in lasers and computer-controlled equipment, and due to increases.