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pro vyhledávání: '"David F. James"'
Autor:
David F. James, Abhishek Tripathi
Publikováno v:
Journal of Non-Newtonian Fluid Mechanics. 312:104974
Autor:
David F. James, Caitlin A.M. Roos
Publikováno v:
Journal of Non-Newtonian Fluid Mechanics. 293:104557
The pressure to drive a Boger fluid through a long converging channel was measured as a function of flow rate. The channel geometry and flow rates were designed to avoid an upstream vortex and to maximize extensional effects, specifically, to achieve
Publikováno v:
Journal of Rheology. 60:1137-1149
The flow around an isolated cylinder with a Boger fluid was studied experimentally by partially immersing a small vertical cylinder in a test fluid contained in an annular tank slowly rotating on a turntable. To approximate isolation, the ratio of th
Autor:
David F. James
Publikováno v:
Journal of Non-Newtonian Fluid Mechanics. 232:33-42
The possible role of shear-generated normal stresses in flows which appear to be extensional in nature is rarely considered. But in a recent article we showed that, in flows of Boger fluids through arrays of rods, the increased flow resistance caused
Publikováno v:
Dysphagia
Thickened liquids are frequently used in the management of oropharyngeal dysphagia. Previous studies suggest that compression of a liquid bolus between the tongue and the palate in the oral phase of swallowing serves a sensory function, enabling the
Publikováno v:
Canadian Journal of Ophthalmology. 47:55-61
To determine whether brand-name glaucoma drops differ from generic equivalents in bottle design, viscosity, surface tension, and volume in North America.Experimental study.We studied 5 bottles each of 11 kinds of glaucoma drops.Density-based calculat
Autor:
David F. James, Jing Wang
Publikováno v:
Journal of Rheology. 55:1103-1126
Some of the fluids routinely used in microfluidic devices have micro and nanostructures that can generate viscoelastic behavior. In this paper, an experimental technique is developed to estimate the extensional flow resistance of dilute polymer solut
Publikováno v:
Experiments in Fluids. 51:801-809
Particle image velocimetry (PIV) and pressure loss measurements were used to investigate slow flow through a square array of cylinders having a solid fraction of 10%. The test fluids were a Newtonian fluid and a Boger fluid, both of high viscosity su
Autor:
Hideaki Yamada, David F. James
Publikováno v:
Nordic Pulp & Paper Research Journal. 26:128-132
Publikováno v:
Journal of Rheology. 54:95-116
The planar extensional flow resistance of a foaming-grade polystyrene, with and without a blowing agent, was characterized using two dies, each one consisting of a high-aspect-ratio straight rectangular channel followed by a hyperbolic convergent rec