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Showing 1 to 17 of 17 for “"capillary effects"”.
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Capillary Effects on Three-Phase, Two-Component, Gas-Liquid Inclusions
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Capillary Effects of Nanoporous Networks on Aerospace Autoclave-grade Prepreg Composites Enabling Vacuum-bag-only Manufacturing
… voids by encouraging resin infusion through capillary effects. This removes the need for applied autoclave pressure and enables vacuum-bag-only (VBO) curing of autoclave-grade composites using either conductive or convective heating under vacuum. Aligned carbon nanotubes (A-CNTs) have been …
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Numerical Methods for Compressible Multi-phase flows with Surface Tension
… methods for compressible multi-phase flows with capillary effects based upon the full seven-equation Baer-Nunziato model. For that reason, there are some numerical methods to obtain high accuracy solutions, which will be shown here. First, a high resolution shock capturing Total Variation …
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A vacuum permeability test for compacted clay
… an asphalt bond. The anticipated difficulties, capillary effects, undetected leakage, and permeability reduction by entrapped air, do not introduce appreciable error as shown by the linearity of flow velocity-hydraulic gradient curves and the general agreement of test results with those obtained …
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The Design and Analysis of a Micro Squeeze Flow Rheometer
… of the microrheometer has been carried out. The capillary effects, including contact angle hysteresis, and viscoelasticity associated with the liquid has been combined with the dynamics and electrical response of the rheometer itself to form a complete and consistent model. The validity of the …
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Air flow effects in the piston ring pack and their implications on oil transport
… the grooves and the piston-liner interface. Low capillary numbers in the order of 10-5 indicate close to no oil transport into circumferential direction from blowby shear. The oil transport radially into the grooves is mainly determined by hydrostatics and capillary effects in the groove flanks …
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Stability of Nanoporous Metals
… relaxation of np-metals post processing. Capillary effects play a secondary role in the overall relaxation. The simulation results presented also identify a maximum surface area to volume ratio necessary to maintain mechanical stability beyond which the pore structure collapses.
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Flow through porous media : from mixing of fluids to triggering of earthquakes
… geomechanics that is capable of handling strong capillary effects. We develop a numerical simulation tool by coupling a multiphase flow simulator with a mechanics simulator, using the unconditionally stable fixed-stress operator split for the sequential solution of two-way coupling between flow …
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Optimal transport strategies
… Many small creatures rely on relatively subtle capillary effects for fluid uptake. Particular attention is given to nectar drinking strategies. Nectar drinkers must feed quickly and efficiently due to the threat of predation. While the sweetest nectar offers the greatest energetic rewards, the …
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Pore size distribution and methane equilibrium conditions at Walker Ridge Block 313, northern Gulf of Mexico
… sediments with salinity close to seawater due to capillary effects. The existence of a three-phase zone affects the location of the bottom-simulating reflection (BSR) and also has repercussions for methane fluxes at the base of the GHSZ. This project studied the hydrate stability conditions in two …
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Synthesis and engineering of metal-organic frameworks for liquid phase applications
… large pore size MOFs, the pore collapse inducing capillary effects during direct activation from water can be navigated by inclusion of hydrophobic functionalities. The poor stability of powdered ZIF-8 in acidic media and even in neutral conditions is attested. More importantly, the kinetic …
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A continuous real-time interactive basin simulator (RIBS)
… scheme which allows one to account for the capillary effects during infiltration in a soil that has exponential decay of the saturated conductivity with depth. A soil moisture redistribution scheme is incorporated in the model to provide a way of simulating the dynamics of the soil moisture …
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Investigations on Void Formation in Composite Molding Processes and Structural Damping in Fiber-Reinforced Composites with Nanoscale Reinforcements
… of woven fibrous preforms, accounting for the capillary effects within the fiber bundles. An analytical model is developed for the longitudinal permeability of flow through fibrous bundles and applied to simulations which provide detailed predictions of local air entrapment locations as the …
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Mechanical energy storage in carbon nanotube springs
… of carbon nanotubes in fibers using capillary effects is shown to be an effective way to consolidate CNTs and create high performance fibers since the CNTs selfassemble into dense, interacting networks that promote load transfer. The first demonstrations of carbon nanotube springs …
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Effect of binder drop placement strategy on surface finish of fine ceramic parts by 3D printing
… show evidence of binder rearrangement due to capillary effects on the surface of the powder bed. Two fundamental alternative styles were investigated where droplets are printed far enough apart that they interact with the powder bed and not with liquid on the surface of the powder bed. In the …
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Collective Evolution of Biological and Physical Systems
… in the regime when interface kinetic effects dominate over capillary effects. The asymptotic analysis required to relate the parameters in the phase-field with those of the original sharp interface model is straightforward, and the resultant phase-field model can be used for a wide …
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Rheological characterization of lubricants in automotive industries through development of a novel capillary breakup extensional rheometer
… deformation rates. The experimental technique of capillary thinning is utilized for characterizing the fluids and an improved design of the Capillary Breakup Extensional Rheometer (CaBER) is introduced. The new instrument features higher resolution and faster sampling of the laser micrometer …