Energy cascade and spatial fluxes in wall turbulence

N Marati, CM Casciola, R Piva - Journal of Fluid Mechanics, 2004 - cambridge.org
Real turbulent flows are difficult to classify as either spatially homogeneous or isotropic.
Nonetheless these idealizations allow the identification of certain universal features …

Scale-by-scale budget and similarity laws for shear turbulence

CM Casciola, P Gualtieri, R Benzi… - Journal of Fluid …, 2003 - cambridge.org
Turbulent shear flows, such as those occurring in the wall region of turbulent boundary
layers, show a substantial increase of intermittency in comparison with isotropic conditions …

Scaling properties in the production range of shear dominated flows

CM Casciola, P Gualtieri, B Jacob, R Piva - Physical review letters, 2005 - APS
In large Reynolds number turbulence, isotropy is recovered as the scale is reduced and
homogeneous-isotropic scalings are eventually observed. This picture is violated in many …

Structure functions in nocturnal atmospheric boundary layer turbulence

E Kit, E Barami, HJS Fernando - Physical Review Fluids, 2021 - APS
This paper analyzes odd and even higher-order moments for longitudinal velocity increment
Δ u (x, r), where x is the longitudinal coordinate and r is the separation distance, based on …

Large-scale anisotropy effect on small-scale statistics over rough wall turbulent boundary layers

Y Tsuji - Physics of Fluids, 2003 - pubs.aip.org
According to the local isotropy hypothesis presented by Kolmogorov, small-scale velocity
fluctuations should be universal in any kind of turbulent flow when the Reynolds number is …

用PIV 实验研究边界层内结构函数标度律

张珂, 李万平 - 实验流体力学, 2009 - pubs.cstam.org.cn
湍流标度律的变化情况显示了湍流边界层内的流动状况. 利用高分辨率, 高帧率的粒子图像测速
技术(PIV) 对平板湍流边界层进行了实验研究. 研究结果显示, 当脉动速度增量结构函数的阶数为 …

壁湍流标度律与流动结构实验分析

张珂, 胡新丽 - 云南大学学报(自然科学版), 2015 - yndxxb.ynu.edu.cn
标度律是研究湍流统计和湍流级串的重要工具, 文中应用PIV 系统的分辨率较高和帧率较高的
特点, 对在动量损失厚度雷诺数Re= 2694 时实验区域的脉动速度数值进行测量 …

Numerical evidence of a new similarity law in shear dominated flows

R Benzi, CM Casciola, P Gualtieri, R Piva - Computers & Mathematics with …, 2003 - Elsevier
Recent theoretical results concerning the effect of shear on scaling laws in turbulence are
discussed. DNS data for a turbulent channel flow and a homogeneous shear flow are used …

[PDF][PDF] 边界层内低阶结构函数标度律的实验研究

张珂, 李万平 - 山东大学学报(理学版), 2010 - lxbwk.njournal.sdu.edu.cn
利用PIV 系统对平板湍流边界层在Reθ= 2167 下流向(u!) 和法向脉动速度(v!) 进行了测量,
研究结果显示, 当脉动增量的结构函数的阶数为正分数时, 实验所得的标度指数和K41 及sL …

Influence of localized unsteady ejection on the scaling laws and intermittency in a turbulent boundary layer flow

H Guo, QM Huang, PQ Liu, T Feng - Experiments in Fluids, 2015 - Springer
The effects of localized unsteady ejection by synthetic jet with slot-type exit on a turbulent
boundary layer at zero pressure gradient conditions were investigated downstream of the …