boundary layers
Acoustic loading beneath hypersonic transitional and turbulent boundary layers
... This paper concerns a study of pressure fl uctuations beneath hypersonic transitional and turbulent boundary layers and associated acoustic loading on a flat surface. We have employed high-order implicit ...
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Calculation of three-dimensional boundary layers on turbomachinery blades
... endwalls boundary layer, the endwalls of the cascade and the duct-walls approximately two chord-length upstream of the cascade were made of perforated ...the boundary layers, a specially made probe ...
245
Detecting the location of the boundary layers in singular perturbation problems with general linear non-local boundary conditions
... have boundary layer in the related ...the boundary value problems includ- ing linear O.D.E with local boundary conditions as singular perturbation ...of boundary condi- tions and also for the ...
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Computational aeroacoustics beneath high speed transitional and turbulent boundary layers
... turbulent boundary layer interactions and the associated acoustic loading on a compres- sion/expansion ...hypersonic boundary layers, in the context of acoustic loading, are ...the boundary ...
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Stability of Hypervelocity Boundary Layers
... As discussed by Corbett and Bottaro (2000) for the incompressible case, flows experience a competition between modal and non-modal growth mechanisms. At low enough Reynolds numbers, the flow is generally modally stable ...
294
Shock-Induced Separation of Transitional Hypersonic Boundary Layers
... the boundary layer to grow out further into the flow due to increased shear ...the boundary layer and so the boundary layer must grow again so that the same mass of fluid can travel at a lower ...
226
Rough wall boundary layers: mean flow universality
... There is some evidence that even if a universal wake function is accepted for all kinds of boundary layers, the value of Π is significantly higher for rough-wall than for smooth-wall flows. Tani (1987), for ...
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Modelling dispersion in turbulent boundary layers using centre manifold technique
... turbulent boundary layers based on centre manifold ...no-flux boundary conditions on the bottom and the ...turbulent boundary layers over smooth and rough substrates; (iii) An ...
165
Modelling dispersion in turbulent boundary layers using centre manifold technique
... turbulent boundary layers based on centre manifold ...no-flux boundary conditions on the bottom and the ...turbulent boundary layers over smooth and rough substrates; (iii) An ...
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The effect of heat transfer on separation of laminar compressible boundary layers
... Tani I S integral method is extended to t reat laminar two-dimensional compressible boundary layers with heat transfer and arbitrary pressure gradient for both attache[r] ...
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Local nonsimilarity solution for vertical free convection boundary layers.
... Before proceeding to the local nonsimilarity method, it is useful to examine equations (11) and (12) from the standpoint of local similarity. The local similarity solutions give first order estimates of the heat and mass ...
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Vertical sidewall boundary layers in combined waves and currents
... Treloar and Brebner (1970) tested Hunt's formulation by directly measuring the sidewall and bottom rates o f energy dissipation in laminar wave only boundary layers. They measured wave height attenuation in ...
319
Large-eddy Simulation of Turbulent Boundary Layers with Spatially Varying Roughness
... wall boundary transitions using large eddy simulations (LES), examining first and second order flow statistics in addition to the growing internal boundary layer ...internal boundary layers ...
132
Asymptotic analysis of boundary layers in a repulsive particle system
... Attractive–repulsive interactions. As discussed in the introduction, many particle sys- tems relevant for applications exhibit interactions which combine both attractive and repul- sive behaviour. Examples include the ...
50
Unsteady turbulent boundary layers in swimming rainbow trout
... the boundary layer due to undulatory swimming motions induces a large increase in the drag forces originating from skin friction is termed the Bone – Lighthill boundary layer thinning hypothesis (Lighthill, ...
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Boundary layers in pressure-driven flow in smectic A liquid crystals
... important boundary layer “distances,” which are in turn connected to the relative reorientations of n and a and the classical boundary layer “displacement thickness” in relation to the velocity pro- ...the ...
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Distributed Roughness Effects on Transitional and Turbulent Boundary Layers
... From numerical perspective, it is evident that most of the eddy resolving simulations in literature have addressed transition induced by isolated rough- ness in supersonic flows. The objective of the present study is to ...
28
Conjugate natural convection boundary layers
... flow patterns were visualized by suspended fine aluminum flakes in liquid. To investigate a problem of interest in the thermal control of electronic equipment, an experimental study was carried out by Ramos et al. [220]. ...
313
The effect of freshwater biofilms on turbulent boundary layers and the implications for hydropower canals
... Seven methods for determining the wall shear stress were investigated; however, none of the methods examined were entirely satisfactory. A method which can be used for both smooth and rough surfaces with reasonable ...
21
Physical insight into the accuracy of finely-resolved iLES in turbulent boundary layers
... This paper investigates the numerical accuracy of implicit Large Eddy Sim- ulations (iLES) in relation to compressible turbulent boundary layers (TBL). iLES are conducted in conjunction with Monotonic ...
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