水力发电学报2025，Vol.44Issue(6)：89-97,9.DOI:10.11660/slfdxb.20250609
水平射流泥沙冲刷对扑翼获能特性的影响
Study on influence of horizontal jet sediment erosion on energy extraction performance of flapping hydrofoil
摘要
Abstract
A two-dimensional horizontal jet sediment erosion model is developed using a discrete phase model,to study the influence of sediment erosion on the energy extraction characteristics of a flapping hydrofoil.The results show that for the sediment diameter of 1mm,at a mass flow rate of 0.50kg/s and a flow velocity of 1m/s,the hydrofoil's energy extracting efficiency reaches its peak of 44.9%,or an increase of 6.1%compared to the Kinsey's peak of 38.8%.In sediment-laden flow,interaction is enhanced between the flapping hydrofoil and muddy water,leading to an increase in pressure difference,which is conducive to the hydrofoil's fluctuating movement.Sediment-laden flow also accelerates vortex shedding in the wake of the hydrofoil with fierce disturbance on the trailing edge,so that the capability of capturing flow energy is enhanced.Therefore,the energy extraction characteristics of a flapping hydrofoil is improved by sediment-laden flow.关键词
泥沙冲刷/离散相模型/获能特性/水平射流/扑翼Key words
sediment erosion/discrete phase model/energy extraction efficiency/horizontal jet/flapping hydrofoil分类
土木建筑引用本文复制引用
保燕东,曾云,李伟忠,张官习,赵燚..水平射流泥沙冲刷对扑翼获能特性的影响[J].水力发电学报,2025,44(6):89-97,9.基金项目
国家自然科学基金青年项目(52309114) （52309114）
云南省基础研究计划项目(202301AU070053) （202301AU070053）
