Wave turbulence and intermittency in directional wave fields |
| |
| Institution: | 1. Department of Physics, Ferdowsi University of Mashhad, 91775-1436 Mashhad, Iran;2. Department of Physics, University of Sistan and Baluchestan, Zahedan, Iran;3. Institute for Metals Superplasticity Problems RAS, Khalturin Street 39, 450001 Ufa, Russia;4. National Research Tomsk State University, Lenin Ave. 36, 634050 Tomsk, Russia;1. Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Viet Nam;2. Institute of Mechanics, Vietnam Academy of Science and Technology, 264 Doi Can, Ba Dinh, Hanoi, Viet Nam;3. Department of Civil and Environmental Engineering, Tokyo Institute of Technology, Tokyo, Japan;4. Institute of Physics, Vietnam Academy of Science and Technology, Hanoi, Viet Nam;5. Faculty of Mathematics, Mechanics and Informatics, Hanoi University of Science, Hanoi, Viet Nam;1. Université M’Hamed Bougara de Boumerdes, Faculté des sciences, Département de Physique, Siège (ex-INIL), Boumerdes 35000, Algeria;2. Faculté de Physique, Université des Sciences et de la Technologie Houari Boumedienne, B.P. 32 El Alia, Algiers 16111, Algeria;3. Aix-Marseille University, CNRS, Centrale Marseille, IRPHE, Marseille, France;1. College of Mathematics Physics and Information Engineering, Jiaxing University, Jiaxing, Zhejiang 314001, PR China;2. Department of Mathematics, Ningbo University, Ningbo, Zhejiang 315211, PR China;3. Department of Physics, Pondicherry University, Puducherry 605014, India |
| |
| Abstract: | The evolution of surface gravity waves is driven by nonlinear interactions that trigger an energy cascade similarly to the one observed in hydrodynamic turbulence. This process, known as wave turbulence, has been found to display anomalous scaling with deviation from classical turbulent predictions due to the emergence of coherent and intermittent structures on the water surface. In the ocean, waves are spread over a wide range of directions, with a consequent attenuation of the nonlinear properties. A laboratory experiment in a large wave facility is presented to discuss the sensitivity of wave turbulence on the directional properties of model wave spectra. Results show that the occurrence of coherent and intermittent structures become less likely with the broadening of the wave directional spreading. There is no evidence, however, that intermittency completely vanishes. |
| |
| Keywords: | Wave motion Wave turbulence Intermittency Structure functions Ocean waves |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
