同济大学学报（自然科学版）2026，Vol.54Issue(6)：934-949,16.DOI:10.11908/j.issn.0253-374x.25099
刚性植物影响下水流结构与紊动特征
Flow Structure and Turbulence Characteristics Under the Impact of Rigid Vegetation
摘要
Abstract
This paper investigated the turbulent characteristics of flow through rigid vegetation using laboratory physical model experiments,with cylindrical wooden rods simulating rigid plant canopies.The effects of vegetation on vertical velocity profiles and turbulence structures were systematically examined under two submergence ratios(submerged and emergent conditions)and different hydrodynamic regimes(regular waves and wave-dominated wave-current interactions).The results revealed that vegetation significantly attenuated flow velocities via form drag,with reduction rates of 14％～32％under regular waves,increasing with vegetation density.Vegetation exerted dual effects on turbulence:canopy-scale shear turbulence generated at the top of submerged vegetation contributed 20％～38％to total turbulent kinetic energy(TKE),while stem-scale wake turbulence accounted for 26％～77％.Conversely,turbulence was suppressed by 8％～40％at certain depths due to reduced shear and enhanced energy dissipation within the canopy.Under wave-dominated wave-current conditions,velocity and turbulence patterns closely mirrored those observed under regular waves alone.Overall,rigid vegetation significantly altered turbulence characteristics by redistributing velocity and TKE.关键词
滨海湿地/紊动特性/刚性植物/水流阻力Key words
coastal wetland/turbulence characteristics/rigid vegetation/flow resistance分类
建筑与水利引用本文复制引用
娄厦,陆天衡,汪豪,杨中元,薛剑锋,刘曙光,刘浩男,FEDOROVA Irina Viktorovna,RADNAEVA Larisa Dorzhievna..刚性植物影响下水流结构与紊动特征[J].同济大学学报（自然科学版）,2026,54(6):934-949,16.基金项目
国家自然科学基金(42072281) （42072281）
上海市科技创新行动计划(22ZR1464200,22230712900). （22ZR1464200,22230712900）
