Risultati di ricerca
30 ago 2015 · In this study, computational simulations were made using ANSYS CFX to predict the influence of upstream and downstream step curvature radii on the film cooling effectiveness. Five upstream steps and four downstream steps with different curvature radii were studied. The curvature radii of these steps of R = 1.64D, 2D, 3D, 4D, and 5D were used. The film cooling effectiveness (η) of these steps ...
1 mag 2010 · When the film thickness is given, the thickness of the plastic zone in the film with a strain hardening of 15 GPa is relatively lower than that in the film with a strain hardening of 0 GPa. The magnitude of λ as a function of the corresponding temperature difference Δ T 2 with respect to different values of η is shown in Fig. 6 .
'Curvature' is a film it doesn't do enough with its potential (although there are far bigger wastes of potential in film) and could have been much better. 'Curvature' is very weak with a lot of big problems. It certainly could have been far worse, considering the large number of films seen recently being mediocre at best and terrible at worst.
A broadband absorber composed of a TiAlC/SiO2 film stack prepared by atomic layer deposition was presented, which could be uniformly coated on magnesium alloys with large curvature, achieving an average absorption as high as 99.4% within the wavelength range from 400 to 1000 nm. An Al2O3/TiO2 interlayer was deposited on magnesium alloys prior to the deposition of ultrablack films, which ...
5 gen 2018 · The physical basis of the wafer curvature technique is that a stressed film will induce curvature in the underlying substrate or wafer. The relationship between curvature and stress was first calculated in 1909 by Stoney, who was interested in understanding delamination of copper layers from searchlight reflectors .
1 nov 2017 · Nearly all tear film models assume the substrate (the cornea or contact lens) under the tear film to be flat. This approximation is based on the fact that the tear film’s thickness, which is of the order of a few microns, is very small compared to the average radius of curvature of the cornea surface, which is of the order of a centimeter [18].
17 ago 2010 · Curvature singularity and film-skating during drop impact. We study the influence of the surrounding gas in the dynamics of drop impact on a smooth surface. We use an axisymmetric 3D model for which both the gas and the liquid are incompressible; lubrication regime applies for the gas film dynamics and the liquid viscosity is neglected.
