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首页> 外文期刊>International Journal on Hydropower & Dams >Estimation of diversion head loss at hydropower surface intakes
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Estimation of diversion head loss at hydropower surface intakes

机译：水电地面取水口引水头损失的估算

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摘要

Many hydropower plants are designed with a surface intake that diverts water from a headpond, or reservoir, created on the river. The river diversion causes a head loss, defined as the difference in water level between the headpond and the intake. To estimate the diversion head loss, a 2D depth-averaged numerical model (River2D) was used to simulate the river and intake flow for a typical river intake layout and a range of flows and diversion angles. Based on the simulation results, an equation is proposed to estimate the diversion head loss as a function of the upstream river velocity, the intake velocity and the angle of diversion.
机译：许多水力发电站的设计都采用地表取水口，该水口用于转移河流上形成的水塘或水库中的水。引水导致水头损失，定义为水源头和进水口之间的水位差。为了估算分流水头损失，使用2D深度平均数值模型（River2D）对典型的河流取水口布局以及一定范围的流量和引水角模拟河流和取水流量。根据模拟结果，提出了一个方程来估算作为上游河流速度，进水速度和分流角的函数的分流水头损失。

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