湍流边界层均匀动量区统计分形特性的PIV 实验研究

陈怡纯, 田海平, 马国祯, 陈纪仲 - 力学学报, 2024 - lxxb.cstam.org.cn
均匀动量区(UMZs) 作为动量相近的局部区域成为新的湍流拟序结构成员,
研究其统计特性与变化规律, 分析其成因和研究其与其他湍流结构的内在关联 …

Coherent structures modulate atmospheric surface layer flux-gradient relationships

ST Salesky, W Anderson - Physical Review Letters, 2020 - APS
Since its inception in the 1940s, Monin-Obukhov similarity theory (MOST), which relates
turbulent fluxes to mean vertical gradients in the lower atmosphere, has become ubiquitous …

On the turbulent boundary layer over a flat plate at moderate Reynolds numbers

F Scarano, MC Jacob, X Carbonneau, ER Gowree - Physics of Fluids, 2022 - pubs.aip.org
Two separate experimental campaigns of a spatially developing turbulent boundary layer
under approximately zero-pressure-gradient at moderate Reynolds numbers (⁠ 1700< R e …

Turbulence organization and mean profile shapes in the stably stratified boundary layer: zones of uniform momentum and air temperature

M Heisel, PP Sullivan, GG Katul… - Boundary-Layer …, 2023 - Springer
A persistent spatial organization of eddies is identified in the lowest portion of the stably
stratified planetary boundary layer. The analysis uses flow realizations from published large …

Multi-scale modelling predicts plant stem bending behaviour in response to wind to inform lodging resistance

T Gangwar, AQ Susko, S Baranova… - Royal Society …, 2023 - royalsocietypublishing.org
Lodging impedes the successful cultivation of cereal crops. Complex anatomy, morphology
and environmental interactions make identifying reliable and measurable traits for breeding …

Influence of synthetic jet on uniform momentum zones

JH Zhang, BH Li, JB Su, N Jiang - International Journal of Heat and Fluid …, 2023 - Elsevier
Based on a set of streamwise-wall-normal experimental databases of turbulent boundary
layer (TBL) acquired by time-resolved particle image velocimetry (TR-PIV) system at the …

PIV experimental study on statistical fractal characteristics of uniform momentum zones in turbulent boundary layer

C Yichun, T Haiping, M Guozhen… - Chinese Journal of …, 2024 - lxxb.cstam.org.cn
Uniform momentum zones (UMZs), as local regions with similar momentum, become a new
member of turbulent coherent structures. To study statistical characteristics, variation rules …

Grand-Scale Atmospheric Imaging Apparatus (GAIA) and Wind Lidar Multiscale Measurements in the Atmospheric Surface Layer

GV Iungo, M Guala, J Hong, N Bristow… - Bulletin of the …, 2024 - journals.ametsoc.org
Understanding the organization and dynamics of turbulence structures in the atmospheric
surface layer (ASL) is important for fundamental and applied research in different fields …

Data-driven enhancement of coherent structure-based models for predicting instantaneous wall turbulence

R Deshpande, CM de Silva, M Lee, JP Monty… - International Journal of …, 2021 - Elsevier
Predictions of the spatial representation of instantaneous wall-bounded flows, via coherent
structure-based models, are highly sensitive to the geometry of the representative structures …

Generation and characterization of fully developed state in open channel flow

S Das, R Balachandar, RM Barron - Journal of Fluid Mechanics, 2022 - cambridge.org
A fully developed approach flow is necessary in open channel studies to maintain
commonality among datasets obtained from different facilities. Two-component planar …