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You are here : eLibrary : IAHR World Congress Proceedings : 36th Congress - The Hague (2015) ALL CONTENT : Water engineering : Development of a numerical wave-current flume using the les method
Development of a numerical wave-current flume using the les method
Author : ZHENSHAN XU(1) & YONGPING CHEN (2)
action between wave and current could affect other important processes in the coastal area, such as the
effluent diffusion and transportation (Abdel-Rahman et al., 2004), the suspension and transportation of sediment
(Bolaņos-Sanchez, 2005), etc. It has been extensively studied by many coastal engineers and researchers in recent
years.
Laboratory experiments (Kemp et al., 1982, 1983; Umeyama, 2005, 2009) have been carried out to examine such
complex flow. The measurements found that the time-averaged vertical profile of the current is significantly affected by
the wave effect, showing a deviation from the classical log-law distribution. The wave height becomes smaller in wave
following current than that in stagnant water. The wave that is opposite with the current direction presents a contrary
behaviour. Turbulent structure in wave and current flow is also changed. As the elevation from the bed increases, the
Reynolds stress decreases slowly in the case of waves opposing a current, while it decreases rapidly and changes the
sign at the mid-depth in the case of waves following a current (Umeyama, 2005).Form Required :
File Size : 567,849 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 36th Congress - The Hague (2015) ALL CONTENT
Article : Water engineering
Date Published : 20/08/2015
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