Journal ArticleDOI
Effect of Reynolds number on a slightly heated turbulent boundary layer
TLDR
In a slightly heated turbulent boundary layer, this paper showed that the extent of these regions, as a proportion of the boundary layer thickness, is approximately constant, independent of the momentum thickness Reynolds number when R m ⪞ 3100.About:
This article is published in International Journal of Heat and Mass Transfer.The article was published on 1981-11-01. It has received 103 citations till now. The article focuses on the topics: Boundary layer & Boundary layer thickness.read more
Citations
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Journal ArticleDOI
A Reynolds stress model for near-wall turbulence
TL;DR: In this article, a tensorially consistent near-wall second-order closure model is formulated, which replaces the quasi-homogeneous algebraic models that are usually employed, and avoids the need for ad hoc damping functions.
Book ChapterDOI
Transport of Passive Scalars in a Turbulent Channel Flow
John Kim,Parviz Moin +1 more
TL;DR: In this article, a direct numerical simulation of a turbulent channel flow with three passive scalars at different molecular Prandtl numbers is performed, and the computed fields are also examined to investigate the spatial structure of the scalar fields.
Journal ArticleDOI
Direct numerical simulation of a supersonic turbulent boundary layer at Mach 2.5
TL;DR: In this paper, a direct numerical simulation of a supersonic turbulent boundary layer has been performed, in which the flow is homogeneous in both the streamwise and spanwise directions, and which represents the state of the boundary layer at a given streamwise location.
Journal ArticleDOI
Surface heat-flux fluctuations in a turbulent channel flow up to Reτ=1020 with Pr=0.025 and 0.71
TL;DR: In this paper, a simulation of turbulent heat transfer in a channel flow has been carried out in order to investigate the characteristics of surface heat-flux fluctuations, and the effect of large-scale structures extends even to the surface heatfluctuations, and increases with increasing Reynolds number.
Journal ArticleDOI
Direct numerical simulation of turbulent thermal boundary layers
TL;DR: In this article, a method of generating realistic turbulent temperature fluctuations at a computational inlet is proposed and direct numerical simulations of turbulent thermal boundary layers developing on a flat plate with isothermal and isoflux wall boundary conditions are carried out.
References
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Characteristics of turbulence in a boundary layer with zero pressure gradient
TL;DR: 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.
Journal ArticleDOI
Calibration of the Preston tube and limitations on its use in pressure gradients
TL;DR: In this paper, it is shown that in sufficiently strong favorable and adverse pressure gradients the inner-law velocity distribution breaks down completely, and it is suggested that this breakdown is associated with reversion to laminar flow.
Free-Stream Boundaries of Turbulent Flows
Stanley Corrsin,Alan L Kistler +1 more
TL;DR: In this paper, an experimental and theoretical study made of the instantaneously sharp and irregular front which is always found to separate turbulent fluid from contiguous "nonturbulent" fluid at a free-stream boundary is presented.
Journal ArticleDOI
‘Inactive’ motion and pressure fluctuations in turbulent boundary layers
TL;DR: Townsend's (1961) hypothesis that the turbulent motion in the inner region of a boundary layer consists of an active part which produces the shear stress τ and whose statistical properties are universal functions of τ and y, and an inactive and effectively irrotational part determined by the turbulence in the outer layer, is supported in the present paper by measurements of frequency spectra in a strongly retarded boundary layer, in which the "inactive" motion is particularly intense as mentioned in this paper.
Journal ArticleDOI
The Turbulent Boundary Layer in a Compressible Fluid
TL;DR: In this article, the authors derived a transformation from first principles to reduce the boundary-layer equations for a general compressible two-dimensional flow to incompressible form, and applied the transformation to the problem of the turbulent boundary layer on a smooth wall.