液压与气动2026，Vol.50Issue(6)：1-8,8.DOI:10.11832/j.issn.1000-4858.2026.06.001
考虑导轮粗糙度的液力变矩器叶片壁湍流演化规律研究
Research on Evolution of Blade Wall Turbulence over Blades of Hydraulic Torque Converter Considering Stator Surface Roughness
摘要
Abstract
The stator surface roughness significantly alters the blade wall turbulence structure of the torque converter,thereby affecting its operational performance.Therefore,studying the influence of stator surface roughness on flow field evolution holds important research significance and application value.Considering manufacturing constraints,several groups of stator blade surface roughness levels are selected.Based on CFD,the internal flow field of the torque converter is numerically simulated using the SST k-ω turbulence model,and the three-dimensional vortex structures under different stator surface roughness levels are comparatively analyzed.The results indicate that:the variation in stator surface roughness significantly affects its blade wall turbulence structure.As the roughness increases,the area of the high-velocity region on the blade suction side at the inlets of the stator,pump,and turbine gradually shrinks,the velocity magnitude drops significantly,and the overall vortex system becomes more chaotic.Under stall conditions,with the progressive increase in stator blade surface roughness,the error between the torque converter's torque ratio and the experimental value decrease by approximately 2.7％,3.6％and 1.24％,respectively,compared to the smooth blade.The pump torque coefficient decreased by approximately 1.6％,2％and 4.45％,respectively.The research results can provide certain technical guidance for the flow field analysis and blade manufacturing of torque converters.关键词
液力变矩器/计算流体动力学/湍流模型/表面粗糙度/三维涡Key words
hydraulic torque converter/CFD/turbulence model/surface roughness/three-dimensional vortex分类
机械制造引用本文复制引用
柴博森,赵天一,任毅,郑秋霖,名校雨,龚亨特..考虑导轮粗糙度的液力变矩器叶片壁湍流演化规律研究[J].液压与气动,2026,50(6):1-8,8.基金项目
吉林省教育厅科学研究项目(JJKH20250078KJ) （JJKH20250078KJ）
重庆市自然科学基金面上项目(CSTB2023NSCQ-MSX0321) （CSTB2023NSCQ-MSX0321）
国家自然科学基金面上项目(52075212) （52075212）
吉林大学汽车底盘集成与仿生全国重点实验室自由探索项目(ascl-zytsxm-202010) （ascl-zytsxm-202010）
