Results 81 to 90 of about 140,231 (211)

Cycle II.5 aircraft aero-optical turbulent boundary-layer/shear-layer measurements [PDF]

open access: yes, 1980
The aero-optical effects associated with propagating a laser beam through aircraft turbulent boundary layers and shear layers were examined. Observed laser optical performance levels were compared with those inferred from aerodynamic measurements of ...
Gilbert, K.
core   +1 more source

MODELING TURBULENT BOTTOM BOUNDARY LAYER DYNAMICS

open access: yesCoastal Engineering Proceedings, 1986
This paper presents a modeling approach aimed at solving a complete hierarchy of turbulent bottom boundary layers which are often encountered in practical coastal and oceanographic engineering problems. The practical problem is extremely complex due to the presence and interaction of competing processes.
openaire   +2 more sources

A method of calculating compressible turbulent boundary layers [PDF]

open access: yes
Equations of motion for calculating compressible turbulent boundary ...
Herring, H. J., Mellor, G. L.
core   +1 more source

Further studies of the coupled chemically reacting boundary layer and charring ablator. Part 1 - Summary Final report [PDF]

open access: yes
Computer program development for charring ablative materials, chemically reacting laminar boundary layers, and turbulent boundary layer ...
Anderson, L. W.   +3 more
core   +1 more source

Shearing-Stress Measurements by use of a Heated Element [PDF]

open access: yes, 1954
The rate of local heat transfer from a solid surface to a moving fluid is related to the local skin frinction. Measurements of the heat transmission from small elements embedded in the surface of a solid can thus be used to botain local skin-friction ...
Liepmann, H. W., Skinner, G. T.
core   +1 more source

MODELING OF ROUGH WALL BOUNDARY LAYERS WITH AN INTERMITTENCY TRANSPORT MODEL

open access: yesTASK Quarterly, 2010
The paper presents a new extension of the γ-Reθt model to account for both the laminar-turbulent transition and the surface roughness. The new modeling approach takes into account the pressure gradient, turbulence intensity and roughness height and ...
WITOLD ELSNER, PIOTR WARZECHA
doaj  

Kolmogorov-Arnold networks modeling of wall pressure wavenumber-frequency spectra under turbulent boundary layers

open access: yesTheoretical and Applied Mechanics Letters
The empirical models for wavenumber-frequency spectra of wall pressure are broadly used in the fast prediction of aerodynamic and hydrodynamic noise. However, it needs to fit the parameter using massive data and is only used for limited cases.
Zhiteng Zhou   +3 more
doaj   +1 more source

Computation of turbulent boundary layers on curved surfaces, 1 June 1975 - 31 January 1976 [PDF]

open access: yes
An accurate method was developed for predicting effects of streamline curvature and coordinate system rotation on turbulent boundary layers. A new two-equation model of turbulence was developed which serves as the basis of the study.
Chambers, T. L., Wilcox, D. C.
core   +1 more source

Investigation of turbulent processes in magnetospheric boundary layers [PDF]

open access: yes
A self-consistent non-evolving two dimensional slab model of a viscous low-latitude boundary layer (LLBL) coupled to the ionosphere was developed by Phan, et al., (1989).
Lotko, William, Sonnerup, B. U. O.
core   +1 more source

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