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Relevant bibliographies by topics / Turbulent shear layers

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Academic literature on the topic 'Turbulent shear layers'

Author: Grafiati

Published: 9 November 2024

Last updated: 31 July 2025

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Journal articles on the topic "Turbulent shear layers"

1

Johnson, Blair A., and Edwin A. Cowen. "Turbulent boundary layers absent mean shear." Journal of Fluid Mechanics 835 (November 27, 2017): 217–51. http://dx.doi.org/10.1017/jfm.2017.742.

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We perform an experimental study to investigate the turbulent boundary layer above a stationary solid glass bed in the absence of mean shear. High Reynolds number $(Re_{\unicode[STIX]{x1D706}}\sim 300)$ horizontally homogeneous isotropic turbulence is generated via randomly actuated synthetic jet arrays (RASJA – Variano & Cowen J. Fluid Mech. vol. 604, 2008, pp. 1–32). Each of the arrays is controlled by a spatio-temporally varying algorithm, which in turn minimizes the formation of secondary mean flows. One array consists of an $8\times 8$ grid of jets, while the other is a $16\times 16$

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2

Thole, K. A., and D. G. Bogard. "High Freestream Turbulence Effects on Turbulent Boundary Layers." Journal of Fluids Engineering 118, no. 2 (1996): 276–84. http://dx.doi.org/10.1115/1.2817374.

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High freestream turbulence levels significantly alter the characteristics of turbulent boundary layers. Numerous studies have been conducted with freestreams having turbulence levels of 7 percent or less, but studies using turbulence levels greater than 10 percent have been essentially limited to the effects on wall shear stress and heat transfer. This paper presents measurements of the boundary layer statistics for the interaction between a turbulent boundary layer and a freestream with turbulence levels ranging from 10 to 20 percent. The boundary layer statistics reported in this paper inclu

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3

Fontaine, Ryan A., Gregory S. Elliott, Joanna M. Austin, and Jonathan B. Freund. "Very near-nozzle shear-layer turbulence and jet noise." Journal of Fluid Mechanics 770 (March 27, 2015): 27–51. http://dx.doi.org/10.1017/jfm.2015.119.

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One of the principal challenges in the prediction and design of low-noise nozzles is accounting for the near-nozzle turbulent mixing layers at the high Reynolds numbers of engineering conditions. Even large-eddy simulation is a challenge because the locally largest scales are so small relative to the nozzle diameter. Model-scale experiments likewise typically have relatively thick near-nozzle shear layers, which potentially hampers their applicability to high-Reynolds-number design. To quantify the sensitivity of the far-field sound to nozzle turbulent-shear-layer conditions, a family of diame

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Pei, Binbin, FangBo Li, Zhengyuan Luo, Liang Zhao, and Bofeng Bai. "Dynamics of mixing flow with double-layer density stratification: Enstrophy and vortical structures." Physics of Fluids 34, no. 10 (2022): 104107. http://dx.doi.org/10.1063/5.0121554.

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Previous studies on stratified shear layers involving two streams with different densities have been conducted under the Boussinesq approximation, while the combined effect of stratified instability and mean shear in relation to multi-layer density stratification induced by scalar fields remains an unresolved fundamental question. In this paper, the shear-driven mixing flow involving initial double-layer density interfaces due to the compositional differences are numerically investigated, in which the mean shear interacts with Rayleigh–Taylor instability (RTI). Since its critical role in dynam

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Sleath, J. F. A. "Coastal Bottom Boundary Layers." Applied Mechanics Reviews 48, no. 9 (1995): 589–600. http://dx.doi.org/10.1115/1.3023147.

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Turbulent boundary layers in oscillatory flow are reviewed. These boundary layers show a thin inner layer with similar characteristics to wall layers in steady flow. Above this, there is an outer layer which has some characteristics which are the same as those of steady flow outer layers and other characteristics which are different. One difference is that the defect velocity profile does not scale on the shear velocity alone. Also, over rough beds, the turbulence intensity in the outer layer falls off with height in a similar way to oscillating grid turbulence. Transition from laminar to turb

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6

Watanabe, Tomoaki, Carlos B. da Silva, and Koji Nagata. "Non-dimensional energy dissipation rate near the turbulent/non-turbulent interfacial layer in free shear flows and shear free turbulence." Journal of Fluid Mechanics 875 (July 18, 2019): 321–44. http://dx.doi.org/10.1017/jfm.2019.462.

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The non-dimensional dissipation rate $C_{\unicode[STIX]{x1D700}}=\unicode[STIX]{x1D700}L/u^{\prime 3}$, where $\unicode[STIX]{x1D700}$, $L$ and $u^{\prime }$ are the viscous energy dissipation rate, integral length scale of turbulence and root-mean-square of the velocity fluctuations, respectively, is computed and analysed within the turbulent/non-turbulent interfacial (TNTI) layer using direct numerical simulations of a planar jet, mixing layer and shear free turbulence. The TNTI layer that separates the turbulent and non-turbulent regions exists at the edge of free shear turbulent flows and

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Muppidi, Suman, and Krishnan Mahesh. "Direct numerical simulations of roughness-induced transition in supersonic boundary layers." Journal of Fluid Mechanics 693 (January 6, 2012): 28–56. http://dx.doi.org/10.1017/jfm.2011.417.

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AbstractDirect numerical simulations are used to study the laminar to turbulent transition of a Mach 2.9 supersonic flat plate boundary layer flow due to distributed surface roughness. Roughness causes the near-wall fluid to slow down and generates a strong shear layer over the roughness elements. Examination of the mean wall pressure indicates that the roughness surface exerts an upward impulse on the fluid, generating counter-rotating pairs of streamwise vortices underneath the shear layer. These vortices transport near-wall low-momentum fluid away from the wall. Along the roughness region,

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8

Gan, X., M. Kilic, and J. M. Owen. "Flow Between Contrarotating Disks." Journal of Turbomachinery 117, no. 2 (1995): 298–305. http://dx.doi.org/10.1115/1.2835659.

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The paper describes a combined experimental and computational study of laminar and turbulent flow between contrarotating disks. Laminar computations produce Batchelor-type flow: Radial outflow occurs in boundary layers on the disks and inflow is confined to a thin shear layer in the midplane; between the boundary layers and the shear layer, two contrarotating cores of fluid are formed. Turbulent computations (using a low-Reynolds-number k–ε turbulence model) and LDA measurements provide no evidence for Batchelor-type flow, even for rotational Reynolds numbers as low as 2.2 × 104. While separat

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CARSTENSEN, STEFAN, B. MUTLU SUMER, and JØRGEN FREDSØE. "Coherent structures in wave boundary layers. Part 1. Oscillatory motion." Journal of Fluid Mechanics 646 (March 8, 2010): 169–206. http://dx.doi.org/10.1017/s0022112009992825.

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This work concerns oscillatory boundary layers over smooth beds. It comprises combined visual and quantitative techniques including bed shear stress measurements. The experiments were carried out in an oscillating water tunnel. The experiments reveal two significant coherent flow structures: (i) Vortex tubes, essentially two-dimensional vortices close to the bed extending across the width of the boundary-layer flow, caused by an inflectional-point shear layer instability. The imprint of these vortices in the bed shear stress is a series of small, insignificant kinks and dips. (ii) Turbulent sp

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Molinari, John, Patrick Duran, and David Vollaro. "Low Richardson Number in the Tropical Cyclone Outflow Layer." Journal of the Atmospheric Sciences 71, no. 9 (2014): 3164–79. http://dx.doi.org/10.1175/jas-d-14-0005.1.

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Abstract Dropsondes from the NOAA G-IV aircraft were used to examine the presence of low bulk Richardson numbers RB in tropical cyclones. At least one 400-m layer above z = 7.5 km exhibited RB &lt; 1 in 96% of the sondes and RB ≤ 0.25 in 35% of the sondes. The latter represent almost certain turbulence. Sondes from major Hurricane Ivan (2004) were examined in detail. Turbulent layers fell into three broad groups. The first was found below cloud base near the edge of the central dense overcast (CDO) where relative humidity fell below 40%. Near-zero static stability existed within the turbul

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Dissertations / Theses on the topic "Turbulent shear layers"

1

Abu-Hijleh, Bassam Abdel-Kareem A.-R. "Structure of supersonic turbulent reattaching shear layers /." The Ohio State University, 1990. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487676261012304.

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Luo, Jian Yang. "Calculation of turbulent shear layers over highly curved surfaces." Thesis, Imperial College London, 1989. http://hdl.handle.net/10044/1/11500.

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Sreedhar, Madhu K. "Large eddy simulation of turbulent vortices and mixing layers." Diss., This resource online, 1994. http://scholar.lib.vt.edu/theses/available/etd-06062008-163324/.

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Wang, Kan. "Computational investigation of aero-optical distortions by turbulent boundary layers and separated shear layers." Thesis, University of Notre Dame, 2014. http://pqdtopen.proquest.com/#viewpdf?dispub=3578995.

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<p> Aero-optical distortions are detrimental to airborne optical systems. To study distortion mechanisms, compressible large-eddy simulations are performed for a Mach 0.5 turbulent boundary layer and a separated shear layer over a cylindrical turret with and without passive control in the upstream boundary layer. Optical analysis is carried out using ray tracing based on the computed density field and Gladstone-Dale relation.</p><p> In the flat-plate boundary layer, the effects of aperture size, Reynolds number, small-scale turbulence, different flow regions and beam elevation angle are exam

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Hipp, Hans Christoph 1959. "Numerical investigation of mode interaction in free shear layers." Thesis, The University of Arizona, 1988. http://hdl.handle.net/10150/276871.

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Numerical simulations of incompressible, two-dimensional, monochromatically and bichromatically forced laminar free shear layers are performed on the basis of a vorticity-velocity formulation of the complete Navier-Stokes equations employing central finite differences. Spatially periodic shear layers developing in time (temporal model) are compared with shear layers developing in the stream-wise direction (spatial model). The regimes of linear growth and saturation of the fundamental are quantitatively scrutinized, the saturation of the subharmonic and vortex merging are investigated, and the

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Schmidt, Martin Arnold. "Microsensors for the measurement of shear forces in turbulent boundary layers." Thesis, Massachusetts Institute of Technology, 1988. http://hdl.handle.net/1721.1/14781.

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Ciochetto, David S. "Analysis of Three Dimensional Turbulent Shear Flow Experiments with Respect to Algebraic Modeling Parameters." Thesis, Virginia Tech, 1997. http://hdl.handle.net/10919/36808.

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The extension of the theory for two dimensional turbulent boundary layers into three dimensional flows has met with limited success. The failure of the extended models is attributed to the anisotropy of the turbulence. This is seen by the turbulent shear stress angle lagging the flow gradient angle and by the behavior of the Reynolds shear stresses lagging that of the mean flow. Transport equations for the turbulent shear stresses were proposed to be included in a modeling effort capable of accounting for the lags seen in the flow. This study is aimed at developing algebraic relationships betw

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McGinnis, David C. "Aero Optic Characterization of Highly Turbulent Free Shear Layers Over a Backward Facing Step." University of Cincinnati / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1367928372.

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9

Martin, Martin Laura. "Numerical study of sound scattering by isolated elliptic vortices and turbulent jet shear layers." Electronic Thesis or Diss., Ecully, Ecole centrale de Lyon, 2024. http://www.theses.fr/2024ECDL0025.

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Cette étude est consacrée à la diffusion d'ondes acoustiques par des tourbillons isolés et couches de cisaillement de jet turbulentes. Lorsque les ondes acoustiques traversent un volume de turbulence, les fluctuations de la turbulence modifient la direction de propagation des ondes. En outre, si la turbulence évolue dans le temps, le contenu spectral du son change également, ce qui entraîne un élargissement spectral. Afin de mieux comprendre ces phénomènes, une série d'analyses numériques a été réalisée. Pour ce faire, un code fourni par Siemens a été utilisé, dans lequel les Equations d'Euler

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Miller, Ronald J. "A Study of Passive Scalar Mixing in Turbulent Boundary Layers using Multipoint Correlators." Thesis, Georgia Institute of Technology, 2005. http://hdl.handle.net/1853/7574.

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This study analyzes a turbulent passive scalar field using two-point and three-point correlations of the fluctuating scalar field. Multipoint correlation functions are investigated because they retain scaling property information and simultaneously probe the concentration field for the spatial structure of the scalar filaments. Thus, multipoint correlation functions provide unique information about the spatial properties of the concentration filaments. The concentration field is created by the iso-kinetic release of a high Schmidt number dye into a fully developed turbulent boundary layer o

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Books on the topic "Turbulent shear layers"

1

Smits, Alexander J. Turbulent shear layers in supersonic flow. 2nd ed. Springer, 2011.

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Jean-Paul, Dussauge, ed. Turbulent shear layers in supersonic flow. 2nd ed. Springer, 2006.

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Jean-Paul, Dussauge, ed. Turbulent shear layers in supersonic flow. American Institute of Physics, 1996.

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4

Papamoschou, Dimitri. Structure of the compressible turbulent shear layer. American Institute of Aeronautics and Astronautics, 1989.

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5

Y, Chen J., Limley J. L, and Lewis Research Center. Institute for Computational Mechanics in Propulsion., eds. Second order modeling of boundary-free turbulent shear flows. NASA Lewis Research Center, Institute for Computational Mechanics in Propulsion, 1991.

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6

Shau, Y. R. Experimental study of spreading rate enhancement of high Mach number turbulent shear layers. American Institute of Aeronautics and Astronautics, 1989.

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7

Center, Ames Research, ed. Improved two-equation k - [omega] turbulence models for aerodynamic flows. National Aeronautics and Space Administration, Ames Research Center, 1992.

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Center, Ames Research, ed. Improved two-equation k - [omega] turbulence models for aerodynamic flows. National Aeronautics and Space Administration, Ames Research Center, 1992.

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9

Adair, Desmond. Characteristics of merging shear layers and turbulent wakes of a multi-element airfoil. National Aeronautics and Space Administration, Ames Research Center, 1988.

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10

Brown, Douglas L. Computation of turbulent boundary layers employing the defect wall-function method. National Aeronautics and Space Administration, Langley Research Center, 1994.

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Book chapters on the topic "Turbulent shear layers"

1

Gibson, M. M. "Boundary Layers." In Turbulent Shear Flows 4. Springer Berlin Heidelberg, 1985. http://dx.doi.org/10.1007/978-3-642-69996-2_17.

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2

Watanabe, Tomoaki. "Enhancement of Passive Scalar Mixing in a Shear-Free Turbulent Front." In IUTAM Bookseries. Springer Nature Switzerland, 2024. https://doi.org/10.1007/978-3-031-78151-3_6.

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AbstractA localized turbulent region expands spatially by entraining surrounding non-turbulent fluid, demarcated by the turbulent/non-turbulent interface (TNTI) layer. Small-scale vortex tubes and shear layers within this TNTI layer play a pivotal role in the process of entrainment. Shear layers in turbulence are known to be unstable against perturbations with wavelengths approximately 30 times the Kolmogorov scale. This study conducts numerical experiments aimed at investigating the potential for enhancing passive scalar mixing through the excitation of small-scale shear instability. Direct n

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3

Castro, I. P., M. Dianat, and A. Haque. "Shear Layers Bounding Separated Regions." In Turbulent Shear Flows 6. Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/978-3-642-73948-4_25.

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Lee, C., R. W. Metcalfe, and F. Hussain. "Large Scale Structures in Reacting Mixing Layers." In Turbulent Shear Flows 7. Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-76087-7_24.

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5

Comte, P., M. Lesieur, H. Laroche, and X. Normand. "Numerical Simulations of Turbulent Plane Shear Layers." In Turbulent Shear Flows 6. Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/978-3-642-73948-4_29.

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6

Spalart, Philippe R., and Anthony Leonard. "Direct Numerical Simulation of Equilibrium Turbulent Boundary Layers." In Turbulent Shear Flows 5. Springer Berlin Heidelberg, 1987. http://dx.doi.org/10.1007/978-3-642-71435-1_20.

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7

Yu, K., E. Gutmark, and K. C. Schadow. "On Coherent Vortex Formation in Axisymmetric Compressible Shear Layers." In Turbulent Shear Flows 9. Springer Berlin Heidelberg, 1995. http://dx.doi.org/10.1007/978-3-642-78823-9_13.

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Plesniak, Michael W., and James P. Johnston. "Reynolds Stress Evolution in Curved Two-Stream Turbulent Mixing Layers." In Turbulent Shear Flows 7. Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-76087-7_18.

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9

D. Alves, Pedro, Marco Zecchetto, Ricardo P. Xavier, Oliver Buxton, and Carlos B. da Silva. "Universal Features of Turbulent/Non-turbulent and Turbulent/Turbulent Interfaces." In IUTAM Bookseries. Springer Nature Switzerland, 2024. https://doi.org/10.1007/978-3-031-78151-3_7.

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AbstractThe characteristics of turbulent/non-turbulent interfaces and turbulent/turbulent interfaces (TNTI and TTI) are analysed by new carefully designed direct numerical simulations (DNS). Whereas TNTIs separate the turbulent from the non-turbulent region in free shear flows and turbulent boundary layers, TTIs appear whenever two regions of distinct turbulent characteristics interact such as in turbulent jets and wakes surrounded by external turbulent flow, or strongly perturbed turbulent boundary layers, i.e., when the external flow is in turbulent condition. Direct numerical simulations (D

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10

Egerer, Christian, Stefan Hickel, Steffen Schmidt, and Nikolaus A. Adams. "LES of Turbulent Cavitating Shear Layers." In High Performance Computing in Science and Engineering ‘13. Springer International Publishing, 2013. http://dx.doi.org/10.1007/978-3-319-02165-2_24.

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Conference papers on the topic "Turbulent shear layers"

1

JOHANSEN, J., and C. SMITH. "The effects of cylindrical surface modifications on turbulent boundary layers." In Shear Flow Control Conference. American Institute of Aeronautics and Astronautics, 1985. http://dx.doi.org/10.2514/6.1985-547.

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2

Kyrazis, Demos T. "Optical degradation by turbulent free-shear layers." In SPIE's 1993 International Symposium on Optics, Imaging, and Instrumentation, edited by Soyoung S. Cha and James D. Trolinger. SPIE, 1993. http://dx.doi.org/10.1117/12.163700.

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3

Kumar, Vedant, Dipendra Gupta, Gregory P. Bewley, and Johan Larsson. "Three-Dimensional Effects in Turbulent Shear Layers." In AIAA AVIATION FORUM AND ASCEND 2024. American Institute of Aeronautics and Astronautics, 2024. http://dx.doi.org/10.2514/6.2024-4372.

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ROOS, F., and J. KEGELMAN. "Control of coherent structures in reattaching laminar and turbulent shear layers." In Shear Flow Control Conference. American Institute of Aeronautics and Astronautics, 1985. http://dx.doi.org/10.2514/6.1985-554.

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Schlatter, Phillipp, Ramis Orlu, Qiang Li, et al. "PROGRESS IN SIMULATIONS OF TURBULENT BOUNDARY LAYERS." In Seventh International Symposium on Turbulence and Shear Flow Phenomena. Begellhouse, 2011. http://dx.doi.org/10.1615/tsfp7.1790.

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Zheng, Shaokai, and Ellen K. Longmire. "PERTURBING SPANWISE MODES IN TURBULENT BOUNDARY LAYERS." In Eighth International Symposium on Turbulence and Shear Flow Phenomena. Begellhouse, 2013. http://dx.doi.org/10.1615/tsfp8.1340.

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SMITS, A. "The control of turbulent boundary layers by the application of extrastrain rates." In Shear Flow Control Conference. American Institute of Aeronautics and Astronautics, 1985. http://dx.doi.org/10.2514/6.1985-538.

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ROSHKO, A., and F. ROBERTS. "Effects of periodic forcing on mixing in turbulent shear layers and wakes." In Shear Flow Control Conference. American Institute of Aeronautics and Astronautics, 1985. http://dx.doi.org/10.2514/6.1985-570.

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LAI, H., and M. RAJU. "CFD validation of subsonic turbulent planar shear layers." In 29th Joint Propulsion Conference and Exhibit. American Institute of Aeronautics and Astronautics, 1993. http://dx.doi.org/10.2514/6.1993-1773.

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BURR, R., and J. DUTTON. "Numerical modeling of compressible reacting turbulent shear layers." In 21st Fluid Dynamics, Plasma Dynamics and Lasers Conference. American Institute of Aeronautics and Astronautics, 1990. http://dx.doi.org/10.2514/6.1990-1463.

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Reports on the topic "Turbulent shear layers"

1

Jumper, Eric J. Adaptive Optics for Turbulent Shear Layers. Defense Technical Information Center, 2006. http://dx.doi.org/10.21236/ada469562.

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2

Naguib, Hassan M., Candace E. Wark, Ron J. Adrian, A. M. Naguib, and S. Kwan. Investigation of Turbulent Boundary Layers Subjected to Internally or Externally Imposed Time-Dependent Transverse Shear. Defense Technical Information Center, 1997. http://dx.doi.org/10.21236/ada335110.

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Bhushan, Shanti, Greg Burgreen, Wesley Brewer, and Ian Dettwiller. Assessment of neural network augmented Reynolds averaged Navier Stokes turbulence model in extrapolation modes. Engineer Research and Development Center (U.S.), 2025. https://doi.org/10.21079/11681/49702.

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A machine-learned model enhances the accuracy of turbulence transport equations of RANS solver and applied for periodic hill test case. The accuracy is investigated in extrapolation modes. A parametric study is also performed to understand the effect of network hyperparameters on training and model accuracy and to quantify the uncertainty in model accuracy due to the non-deterministic nature of the neural network training. For any network, less than optimal mini-batch size results in overfitting, and larger than optimal reduces accuracy. Data clustering is an efficient approach to prevent the

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4

Glegg, Stewart A. Distorted Turbulent Flow in a Shear Layer. Defense Technical Information Center, 2014. http://dx.doi.org/10.21236/ada600333.

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5

Begeman, Carolyn. Boundary layer turbulence below ice shelves in the shear-dominated regime. Office of Scientific and Technical Information (OSTI), 2022. http://dx.doi.org/10.2172/1862788.

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Keith, William L. Spectral Measurements of the Wall Shear Stress and Wall Pressure in a Turbulent Boundary Layer: Theory. Defense Technical Information Center, 1990. http://dx.doi.org/10.21236/ada224070.

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7

Kamada, R. F. Amending the W* Velocity Scale for Surface Layer, Entrainment Zone, and Baroclinic Shear in Mixed Forced/Free Turbulent Convection. Defense Technical Information Center, 1992. http://dx.doi.org/10.21236/ada250389.

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Peloquin, Mark S. Direct Measurement of the Mode O Turbulent Boundary Layer Wall Pressure and Wall Shear Stress Spectra Using Air-Backed and Oil-Filled Multichannel Wavenumber Filters. Defense Technical Information Center, 1999. http://dx.doi.org/10.21236/ada371294.

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9

Merritt, Elizabeth, Forrest Doss, Eric Loomis, Kirk Flippo, and John Kline. Examining the evolution towards turbulence through spatio-temporal analysis of multi-dimensional structures formed by instability growth along a counter propagating shear layer. Office of Scientific and Technical Information (OSTI), 2014. http://dx.doi.org/10.2172/1148305.

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