圆形涵洞出口流速

Q4 Environmental Science

Archives of Hydroengineering and Environmental Mechanics Pub Date : 2014-12-01 DOI:10.1515/heem-2015-0013

W. Szpakowski

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引用次数: 0

摘要

涵洞桶端段出口流速在大多数情况下取决于涵洞几何形状，包括桶坡度，以及上下游通道参数。流动的水可以在涵管筒内产生压力流或自由表面流。在非浸没桶出口的情况下，自由面流动比满流更频繁。速度的增加会导致涵洞出口下游的河床冲刷和河岸侵蚀。本文介绍了桶形出口未被淹没时的不同涵洞流动情况。文中还讨论了流动形式对出口速度的影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Outlet Flow Velocity in Circular Culvert

Abstract The outlet flow velocity in the end section of the culvert barrel depends in most cases on the culvert geometry, including the barrel slope, as well as on upstream and downstream channel parameters. Flowing water can create pressure flow or free surface flow in the culvert barrel. In the case of an unsubmerged barrel outlet, the free-surface flow is more frequent than the full flow. Increased velocities can cause channel bed scour and bank erosion downstream of the culvert outlet. Different culvert flow cases in which the barrel outlet is unsubmerged are presented in this paper. The influence of the flow regime on the outlet velocity is also discussed.

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来源期刊

Archives of Hydroengineering and Environmental Mechanics Environmental Science-Water Science and Technology

CiteScore

1.30

自引率

0.00%

发文量

期刊介绍： Archives of Hydro-Engineering and Environmental Mechanics cover the broad area of disciplines related to hydro-engineering, including: hydrodynamics and hydraulics of inlands and sea waters, hydrology, hydroelasticity, ground-water hydraulics, water contamination, coastal engineering, geotechnical engineering, geomechanics, structural mechanics, etc. The main objective of Archives of Hydro-Engineering and Environmental Mechanics is to provide an up-to-date reference to the engineers and scientists engaged in the applications of mechanics to the analysis of various phenomena appearing in the natural environment.