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针对不能采用挑流消能型式的大型水电工程,提出了多股多层水平淹没射流新型消能型式。它是利用与下游消力池底板具有一定高差且基本平行的多股射流进入消能水体的中间,在每一股射流的四周形成强剪切并各有一个较为稳定的三元紊动旋滚的水平多股淹没射流进行消能。对该消能方式的水力特性和消能特性进行理论分析,推导出三元水平多股淹没射流水力参数计算公式,计算结果表明它是一种流态稳定、适应性强、低雾化、高消能率,有利于降低临底流速的新型消能方式。
For large-scale hydropower projects that can not adopt the type of pick-flow energy dissipation, a new type of multi-level multi-level submerged jet energy dissipation model is proposed. It is the use of the bottom of the pool with a certain elevation and the basic parallel to the multi-jet into the middle of the energy dissipating water, forming a strong shear around each jet and each have a more stable ternary turbulent rotation Rolling horizontal multi-strand submerged jet energy dissipation. The hydraulic characteristics and energy dissipation characteristics of the energy dissipation mode are analyzed theoretically, and the calculation formula of the hydraulic parameters of the multi-submerged jets at the ternary level is deduced. The calculation results show that it is a stable, adaptable, low- Energy dissipation rate is conducive to reducing the base flow rate of new energy dissipation.