IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
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You are here : eLibrary : IAHR World Congress Proceedings : 35th IAHR Congress - Chengdu (2013) : THEME 6 - MARITIME HYDRAULICS AND COASTAL ENGINEERING : Experimental Study on a Vertical Jet in a Wave and Current CO-existing Environment
Experimental Study on a Vertical Jet in a Wave and Current CO-existing Environment
Author : Yana Wang, Zhenshan Xu, Yongping Chen and Changkuan Zhang
A vertical jet in a wave and current co-existing environment, as a simplified model for the disposal of wastewater into coastal waters, is experimentally investigated in this study. A high-speed camera is used to record the jet instantaneous movement and a set of ADV (Acoustic Doppler Velocimeter) system is used to measure the jet?s 3D velocity profiles point by point. Through analysis of the instantaneous and mean flow patterns as well as the turbulent intensity profiles of the jet, the conclusions are made as follows: 1) Under the combined action of waves and current, the jet will appear the oscillation pattern other than the bending-over pattern as that under the current action only; 2) The jet boundary is virtually broadened due to the additional wave actions; 3) The turbulence intensity is enhanced by the wave motion, resulting in a stronger bending of mean flow patterns in the wave-current co-existing environment. It is believed that the combined effects of wave and current will considerably enhance the jet initial mixing processes and increase the jet initial dilution correspondingly.
File Size : 269,697 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 35th IAHR Congress - Chengdu (2013)
Article : THEME 6 - MARITIME HYDRAULICS AND COASTAL ENGINEERING
Date Published : 19/07/2016
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