4.7 Article

Turbulent/non-turbulent interface for laminar boundary flow over a wall-mounted fence

Related references

Note: Only part of the references are listed.
Article Mechanics

Universal modulations of large-scale motions on entrainment of turbulent boundary layers

Yanguang Long et al.

Summary: The study reveals the significant impact of large-scale motions on the turbulent/nonturbulent interface and turbulent entrainment in turbulent boundary layers. High-speed large-scale motions enhance the engulfment process and result in a more distorted TNTI. These mechanisms are universal for turbulent boundary layers with different wall shapes.

JOURNAL OF FLUID MECHANICS (2022)

Article Engineering, Aerospace

Kinematics of the Turbulent and Nonturbulent Interfaces in a Subsonic Airfoil Flow

Huiying Zhang et al.

Summary: This study investigated turbulent and nonturbulent interfaces (TNTIs) in aerodynamic flows past a NACA-0012 airfoil, using direct numerical simulation and methods such as the threshold-free fuzzy cluster method and joint probability density function-based method for TNTI identification. The curvature of TNTIs was found to be influenced by the transitional state of the flow.

AIAA JOURNAL (2021)

Article Mechanics

Universality of small-scale motions within the turbulent/non-turbulent interface layer

Marco Zecchetto et al.

Summary: The study reveals that the statistics of small-scale motions within the turbulent/non-turbulent interface layer are universal, with minor deviations near the outer surface of the layer. The proposed normalization method allows for a clearer identification of the viscous superlayer and the turbulent sublayer within the TNTI layer.

JOURNAL OF FLUID MECHANICS (2021)

Article Mechanics

The relation between shearing motions and the turbulent/non-turbulent interface in a turbulent planar jet

M. Hayashi et al.

Summary: Through direct numerical simulation, the study has shown that shear layers are more frequently present in the turbulent sublayer than in the turbulent core region, and hardly appear in the viscous superlayer. The thickness of the shear layer can be well predicted by the Burgers vortex layer, and the velocity jump of the shear layer is about seven times the Kolmogorov velocity. Moreover, the layer thickness decreases in the TNTI layer, leading to a decrease in the shear Reynolds number.

PHYSICS OF FLUIDS (2021)

Article Physics, Fluids & Plasmas

Effects of approach flow conditions on the unsteady three-dimensional wake structure of a square-back Ahmed body

Nam Kang et al.

Summary: This paper investigates the effects of different approach flow conditions on the wake characteristics of a square-back Ahmed body. The study shows that the wake structure of the Ahmed body submerged in a thick turbulent boundary layer is significantly different from that of the body in a uniform flow condition.

PHYSICAL REVIEW FLUIDS (2021)

Article Engineering, Mechanical

A novel and robust method for the turbulent/non-turbulent interface detection

Yanguang Long et al.

Summary: A robust TNTI detection method based on tracking Lagrangian trajectories of fluid particles is proposed, which can capture more detailed small-scale structures of the TNTI and remain robust with a noise level up to 1.6% in free stream velocity.

EXPERIMENTS IN FLUIDS (2021)

Article Engineering, Multidisciplinary

Effects of surface shapes on properties of turbulent/non-turbulent interface in turbulent boundary layers

Di Wu et al.

SCIENCE CHINA-TECHNOLOGICAL SCIENCES (2020)

Article Multidisciplinary Sciences

High-Reynolds-number fractal signature of nascent turbulence during transition

Zhao Wu et al.

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA (2020)

Article Mechanics

Kinematics of local entrainment and detrainment in a turbulent jet

Dhiren Mistry et al.

JOURNAL OF FLUID MECHANICS (2019)

Article Mechanics

Turbulence in intermittent transitional boundary layers and in turbulence spots

Olaf Marxen et al.

JOURNAL OF FLUID MECHANICS (2019)

Article Engineering, Mechanical

Evaluation of large-scale turbulent/non-turbulent interface detection methods for wall-bounded flows

Nico Reuther et al.

EXPERIMENTS IN FLUIDS (2018)

Article Mechanics

The scaling of the turbulent/non-turbulent interface at high Reynolds numbers

Tiago S. Silva et al.

JOURNAL OF FLUID MECHANICS (2018)

Article Mechanics

The multi-scale geometry of the near field in an axisymmetric jet

Dhiren Mistry et al.

JOURNAL OF FLUID MECHANICS (2018)

Article Engineering, Civil

Effect of length of two-dimensional obstacles on characteristics of separation and reattachment

J. van der Kindere et al.

JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS (2018)

Article Mechanics

Study on the instability in separating-reattaching flow over a surface-mounted rib

Hailin Gu et al.

INTERNATIONAL JOURNAL OF COMPUTATIONAL FLUID DYNAMICS (2017)

Article Mechanics

Entrainment in a compressible turbulent shear layer

Reza Jahanbakhshi et al.

JOURNAL OF FLUID MECHANICS (2016)

Article Mechanics

Properties of the turbulent/non-turbulent interface in boundary layers

Guillem Borrell et al.

JOURNAL OF FLUID MECHANICS (2016)

Article Mechanics

Unsteadiness in a large turbulent separation bubble

Abdelouahab Mohammed-Taifour et al.

JOURNAL OF FLUID MECHANICS (2016)

Article Engineering, Multidisciplinary

PIV uncertainty propagation

Andrea Sciacchitano et al.

MEASUREMENT SCIENCE AND TECHNOLOGY (2016)

Article Physics, Multidisciplinary

Evaluating the accuracy performance of Lucas-Kanade algorithm in the circumstance of PIV application

Pan Chong et al.

SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY (2015)

Review Mechanics

Interfacial Layers Between Regions of Different Turbulence Intensity

Carlos B. da Silva et al.

ANNUAL REVIEW OF FLUID MECHANICS, VOL 46 (2014)

Article Mechanics

The turbulent/non-turbulent interface and entrainment in a boundary layer

Kapil Chauhan et al.

JOURNAL OF FLUID MECHANICS (2014)

Article Mechanics

Scaling of the turbulent/non-turbulent interface in boundary layers

Kapil Chauhan et al.

JOURNAL OF FLUID MECHANICS (2014)

Article Mechanics

Investigations on the local entrainment velocity in a turbulent jet

M. Wolf et al.

PHYSICS OF FLUIDS (2012)

Article Engineering, Mechanical

Fast and accurate PIV computation using highly parallel iterative correlation maximization

F. Champagnat et al.

EXPERIMENTS IN FLUIDS (2011)

Article Physics, Multidisciplinary

Laminar Superlayer at the Turbulence Boundary

M. Holzner et al.

PHYSICAL REVIEW LETTERS (2011)

Article Mechanics

On the instability and reproduction mechanism of a laminar streak

J. J. Wang et al.

JOURNAL OF TURBULENCE (2009)

Article Mechanics

Coherent structures in bypass transition induced by a cylinder wake

Chong Pan et al.

JOURNAL OF FLUID MECHANICS (2008)

Article Engineering, Mechanical

PIV study of separated and reattached open channel flow over surface mounted blocks

Martin Agelinchaab et al.

JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME (2008)

Article Mechanics

Population trends of spanwise vortices in wall turbulence

Y. Wu et al.

JOURNAL OF FLUID MECHANICS (2006)

Article Physics, Multidisciplinary

Mechanics of the turbulent-nonturbulent interface of a jet

J Westerweel et al.

PHYSICAL REVIEW LETTERS (2005)

Article Mechanics

The turbulent/non-turbulent interface bounding a far wake

DK Bisset et al.

JOURNAL OF FLUID MECHANICS (2002)