排灌机械工程学报2026，Vol.44Issue(5)：450-457,465,9.DOI:10.3969/j.issn.1674-8530.24.0149
支撑结构对导管式阿基米德螺旋水轮机性能的影响
Effects of support structure on performance of ducted Archimedes spiral hydrokinetic turbine
摘要
Abstract
To investigate the influence of the support structure on the performance of a ducted Archi-medes spiral hydrokinetic turbine(DASHT),the computational fluid dynamics method was employed to systematically analyze the effects of key support structure parameters,including the number,spacing,and width of the supports,on the hydrodynamic performance of the turbine.The results indicate that increasing the number of support structures significantly reduces the power coefficient and thrust coeffi-cient of the DASHT.When the number of front supports increases from 1 to 4,the maximum reduction in the power coefficient reaches 25.0%,while the corresponding reduction for rear supports is 22.2%.Additionally,the operational range of the tip speed ratio is narrowed.The effect of support spacing ex-hibits opposite trends for front and rear supports,though the overall impact remains relatively small.Specifically,when the front support spacing increases from 0.36D to 0.72D,the power coefficient in-creases by approximately 5.33%,whereas for the rear support,it decreases by about 6.04%.Changes in support width have almost no effect on either the power coefficient or the thrust coefficient.Based on these findings,it is recommended that a wider single rear support structure with a smaller support spacing be prioritized in the design process of DASHT to minimize the negative impact of the support structure on turbine performance.关键词
阿基米德螺旋水轮机/导管/支撑结构/计算流体力学Key words
Archimedes spiral hydrokinetic turbine/duct/support structure/computational fluid dynamics分类
农业科技引用本文复制引用
宋科,宦惠庭,魏留闯,刘春霞..支撑结构对导管式阿基米德螺旋水轮机性能的影响[J].排灌机械工程学报,2026,44(5):450-457,465,9.基金项目
云南省基础研究专项(202501AT070072) （202501AT070072）
云南省"兴滇英才支持计划"青年人才专项(XDYC-QNRC-2023-0159) （XDYC-QNRC-2023-0159）
云南沈卫明院士工作站资助项目(202505AF350084) （202505AF350084）
云南省智能物流装备与系统重点实验室资助项目(202449CE340008) （202449CE340008）
