Experimental and numerical study on hydrodynamics of riparian vegetation

作     者：UOTANI Takuya KANDA Keiichi MICHIOKU Kohji 

作者机构：Kobe City BureauKobeJapan Department of Civil EngineeringAkashi National College of TechnologyAkashiJapan Department of Civil and Environmental EngineeringHosei UniversityShinjukuTokyoJapan 

出 版 物：《Journal of Hydrodynamics》 (水动力学研究与进展B辑（英文版）)

年 卷 期：2014年第26卷第5期

页      面：796-806页

核心收录：

学科分类：080704[工学-流体机械及工程] 080103[工学-流体力学] 08[工学] 0807[工学-动力工程及工程热物理] 0801[工学-力学（可授工学、理学学位）] 

基　　金：supported by the Himeji River Road Management Office, the Ministry of Land, Infrastructure, Transport and Tourism the Grant-in-Aid for Scientific Research (B)(Grant No. 23360212, Leader: Kohji Michioku) 

主　　题：open channel riparian vegetation drag force velocity profile laboratory experiment hydrodynamic model 

摘      要：Recently, many channelized rivers tend to be heavily vegetated due to regime shifts in hydrological, fluvial and ecological processes. Dense vegetation in a river frequently obstructs a flood flow and reduces conveyance capacity of channels. On the other hand, river vegetation provides various ecological services such as habitats for various species and life, natural cycle of organic and inorganic substances, etc.. It is of engineering importance to understand vegetation hydrodynamics in order to preserve vegetation nature and keep a certain level of flow conveyance capacity. In view that willows tend to be densely vegetated along the shoreline of floodplains or sandbars, a field measurement, a physical model experiment and a numerical analysis were carried out for investigating hydrodynamics in an open channel with riparian vegetation. Discussion was made focusing on flow and shear layer structures developed around the vegetation canopy.