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Flow measurement structures

机译:流量测量结构

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摘要

Weirs, flumes and gates have been used for centuries to determine discharges in open channels. In this paper the distinct flow types, modular flow and non-modular flow, are described and applied to derive the head-discharge relations of weirs with a horizontal crest. The flow measurement structures are classified according to international rules. For a number of decades, the ability of flow measurement structures to allow fish migration has also been judged. On the other hand, some well-known fishways have been considered to act as an alternative flow measurement structure. The presentation of the Venturi gate, which combines the functions of flow measurement structure and fishway, concludes the paper.
机译:堰,水槽和闸门已被用于确定明渠中的流量。在本文中,描述了不同的流动类型(模块化流动和非模块化流动),并将其应用于导出具有水平波峰的堰的水头流量关系。流量测量结构根据国际规则进行分类。几十年来,人们还对流量测量结构允许鱼类迁移的能力进行了评估。另一方面,一些著名的鱼道被认为可以替代流量测量结构。文丘里门的介绍结合了流量测量结构和鱼道功能,总结了本文。

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