Open-Channel Flow Control by Vegetation and Artificial Roughness and Hydraulic Design of Multi-Function Channels

植被和人工粗糙度明渠流量控制及多功能渠道水力设计

基本信息

  • 批准号:
    06650558
  • 负责人:
  • 金额:
    $ 1.28万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for General Scientific Research (C)
  • 财政年份:
    1994
  • 资助国家:
    日本
  • 起止时间:
    1994 至 1995
  • 项目状态:
    已结题

项目摘要

Recently, river improvement should be planned to refine various functional aspects of rivers such as flood control, more efficient water resources utilization, recreational or leisure usage of rivers, well-conserved ecological situation, aquatic habitat and so on. And to achieve such multi-functions, the flow and river morphology should be more skillfully managed or controlled based on hydraulics and mechanics of sediment transport.In this study, control of cellular motion by oblique arrangements of strip roughness and promotion of lateral diffusion by arrangement of vegetation zone have been focused. Cellular motion helps straight navigation of boat and canoe, or removed snow lumps by secondary flow motion, or it gathers floating garbage to remove them by side overflow. Furthermore, it even changes the primary velocity profile. Stream-type fish way is an example of the latter. While, the promoted lateral diffusion works to decrease the turbidity of the main channel by trapping it to the vegetation zone.In this study, various types of approaches have been employed : laboratory experiments, field measurements and numerical analysis as well as simplified hydraulic understanding of the phenomena. The mechanism of formation of cellular motion by obliquely arranged strip roughness on bed and/or side walls and promotion of lateral diffusion by vegetation zone have been understood at several levels. The experiment has provided empirical relations and they have been supported by numerical analysis. And, they must be useful for hydraulic design of multi-functional streams.
近期,河流治理应规划细化河流的各个功能方面,如防洪、更高效地利用水资源、河流的康乐或休闲利用、养护良好的生态状况、水生栖息地等。而要实现这一多功能,必须以水力学和输沙力学为基础,更巧妙地管理或控制水流和河势。本研究的重点是通过倾斜布置条带粗糙度来控制细胞运动,并通过布置植被带来促进横向扩散。细胞运动有助于船和独木舟的直航,或通过二次流运动清除雪块,或收集漂浮的垃圾通过侧溢清除它们。此外,它甚至改变了一次速度分布。溪流型鱼道就是后者的一个例子。在这项研究中,采用了各种方法:实验室实验、现场测量和数值分析,以及简化了对这一现象的水力理解。通过在床和/或侧壁上倾斜排列的条带粗糙度形成细胞运动的机制以及植被带促进横向扩散的机制已经在多个层次上被理解。实验提供了经验关系式,并得到了数值分析的支持。对多功能水流的水力设计具有一定的参考价值。

项目成果

期刊论文数量(54)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Tsujimoto, T.: "Transverse trap of suspended sediment by vegetation zone along a stream" Proc. Int. Conf. Ecological System Enhancement for Aquatic Environ., Tokyo. 150-155 (1995)
Tsujimoto, T.:“河流沿岸植被带对悬浮沉积物的横向捕获”Proc。
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    0
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清水義彦: "植生帯を伴う流れ場の平面2次元解析" 水工学論文集. 39. 513-518 (1995)
Yoshihiko Shimizu:“植被带流场的平面二维分析”水利工程学报 39. 513-518 (1995)。
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    0
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Tsujimoto, T.: "Numerical analysis for aid to understand the flow structure of stream-type fishways" Proc. Int. Sym. Fishways, '95, Gifu. 49-56 (1995)
Tsujimoto, T.:“数值分析有助于理解河流型鱼道的流动结构”Proc。
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    0
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  • 通讯作者:
辻本哲郎: "Numerical analysis for aid to understand the flow structure of stream-type fishways" Proc. Int. Sym. on Fisways '95, Gifu. 49-56 (1995)
Tetsuro Tsujimoto:“有助于理解流型鱼道的流动结构的数值分析”Proc. Fisways 95,Gifu。
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    0
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辻本哲郎: "ストリーム型魚道の流れの構造について" 水工学論文集. 40(印刷中). (1996)
Tetsuro Tsujimoto:“关于流式鱼道的流动结构”水利工程学报40(出版中)。
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TSUJIMOTO Tetsuro其他文献

TSUJIMOTO Tetsuro的其他文献

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{{ truncateString('TSUJIMOTO Tetsuro', 18)}}的其他基金

Modeling of Sediment Dynamics According to Geological Heterogeneity of River Basin with Particular References to Sorting, Abrasion and Confluence Processes
根据流域地质非均质性的沉积物动力学建模,特别是分选、磨损和汇流过程
  • 批准号:
    22656108
  • 财政年份:
    2010
  • 资助金额:
    $ 1.28万
  • 项目类别:
    Grant-in-Aid for Challenging Exploratory Research
Study on Mechanisms of Material Cycling in River Ecosystem with Water, Material and Organism Dynamics
河流生态系统物质循环机制与水、物质和生物动力学研究
  • 批准号:
    19360223
  • 财政年份:
    2007
  • 资助金额:
    $ 1.28万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Dynamic conservation mechanism of temporal water area and its roles in preservation of riparian ecosystem
时域水域动态保护机制及其在河岸生态系统保护中的作用
  • 批准号:
    14350264
  • 财政年份:
    2002
  • 资助金额:
    $ 1.28万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Study on Disaster caused by Heavy rainfall in Tokai Region, Japan at September 2001
2001年9月日本东海地区强降雨灾害研究
  • 批准号:
    12800012
  • 财政年份:
    2000
  • 资助金额:
    $ 1.28万
  • 项目类别:
    Grant-in-Aid for Special Purpose.
Study on Change in River Landscape in Alluvial Fun Rivers and Its Restoration
冲积乐趣河河流景观变化及其恢复研究
  • 批准号:
    11650523
  • 财政年份:
    1999
  • 资助金额:
    $ 1.28万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Study on the method to estimate the subsurface flow in alluvial sandbars
冲积沙洲地下流量估算方法研究
  • 批准号:
    11555133
  • 财政年份:
    1999
  • 资助金额:
    $ 1.28万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B).
Mechanism of blown sand with vegetation of coastal area from multi-phase flow dynamics and methods of blown-sand control
从多相流动力学角度探讨沿海植被风沙机理及风沙控制方法
  • 批准号:
    08650593
  • 财政年份:
    1996
  • 资助金额:
    $ 1.28万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Design of Erosion-Protection of Flood Plain and Side Slope of Levee by Vegetation
河滩及堤岸边坡植被防冲刷设计
  • 批准号:
    07555452
  • 财政年份:
    1995
  • 资助金额:
    $ 1.28万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Study on Effects of Roughness Patterns on Turbulent Structure though Field Measurements
现场测量研究粗糙度模式对湍流结构的影响
  • 批准号:
    03650418
  • 财政年份:
    1991
  • 资助金额:
    $ 1.28万
  • 项目类别:
    Grant-in-Aid for General Scientific Research (C)
Mechanics of Sediment Transport of Graded Materials and Fluvial Sorting
分级材料输沙机理及河流分选
  • 批准号:
    01550401
  • 财政年份:
    1989
  • 资助金额:
    $ 1.28万
  • 项目类别:
    Grant-in-Aid for General Scientific Research (C)

相似海外基金

Turbulent Flow Structure and Flow Resistance of Hyper-concentratedSediment Laden Flow with Artificial Roughness
人工粗糙度超浓泥沙流的湍流结构与流动阻力
  • 批准号:
    22560519
  • 财政年份:
    2010
  • 资助金额:
    $ 1.28万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
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