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Characteristics of turbulence in a boundary layer with zero pressure gradient

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TLDR
In this article, the results of an experimental investigation of a turbulent boundary layer with zero pressure gradient are presented and the importance of the region near the wall and the inadequacy of the concept of local isotropy are demonstrated.
Abstract
The results of an experimental investigation of a turbulent boundary layer with zero pressure gradient are presented. Measurements with the hot-wire anemometer were made of turbulent energy and turbulent shear stress, probability density and flattening factor of u-fluctuation (fluctuation in x-direction), spectra of turbulent energy and shear stress, and turbulent dissipation. The importance of the region near the wall and the inadequacy of the concept of local isotropy are demonstrated. Attention is given to the energy balance and the intermittent character of the outer region of the boundary layer. Also several interesting features of the spectral distribution of the turbulent motions are discussed.

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Citations
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Turbulence structural changes for a three-dimensional turbulent boundary layer in a 30° bend

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Tomographic-PIV measurement of the flow around a zigzag boundary layer trip

TL;DR: In this article, the authors measured the boundary layer transition forced by a zigzag trip and used the resulting instantaneous three-dimensional velocity distributions to quantitatively visualize the flow structures.
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Zero crossings of velocity fluctuations in turbulent boundary layers

TL;DR: In this paper, the statistical properties of zero crossings of turbulent velocity fluctuations in boundary layers over a wide range of Reynolds numbers were investigated, and it was shown that the probability density function of the intervals between successive zero crossings can be approximated by two exponentials, each with its own characteristic scale, and the cross-stream variation of these characteristic scales is investigated.
Proceedings ArticleDOI

An experimental determination of the turbulent Prandtl number in a developing temperature boundary layer

J. Blom
TL;DR: A submitted manuscript is the author's version of the article upon submission and before peer-review as mentioned in this paper, and the final published version features the final layout of the paper including the volume, issue and page numbers.
Journal ArticleDOI

Wall-Normal-Free Reynolds-Stress Closure for Three-Dimensional Compressible Separated Flows

TL;DR: In this article, a near-wall Reynolds-stress closure that is independent of the distance from the wall and of the normal to the normal is developed and validated by comparison with experimental data in a two-dimensional compression corner oblique shockwave/boundary layer interaction at Mach 3.
References
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Journal Article

The Local Structure of Turbulence in Incompressible Viscous Fluid for Very Large Reynolds' Numbers

TL;DR: In this article, the authors consider the problem of finding the components of the velocity at every point of a point with rectangular cartesian coordinates x 1, x 2, x 3, x 4, x 5, x 6, x 7, x 8.

The Structure of Turbulence in Fully Developed Pipe Flow

John Laufer
TL;DR: In this paper, a hot-wire anemometer was used to measure the turbulent flow in a 10-inch pipe at speeds of approximately 10 and 100 feet per second, and the results include relevant mean and statistical quantities, such as Reynolds stresses, triple correlations, turbulent dissipation, and energy spectra.
DissertationDOI

Investigation of turbulent flow in a two-dimensional channel

TL;DR: A detailed exploration of the field of mean and fluctuating quantities in a two-dimensional turbulent channel flow is presented in this article, where mean speed and axial-fluctuation measurements were made well within the laminar sublayer.

Some Features of Artificially Thickened Fully Developed Turbulent Boundary Layers with Zero Pressure Gradient

TL;DR: In this article, the feasibility of artificially thickening a turbulent boundary layer on a flat plate was investigated and it was shown that it is possible to do substantial thickening and obtain a fully developed turbulent boundary layers, which is free from any distortions introduced by the thickening process.