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Showing 1 to 17 of 17 for “"Darcy’s law"”.
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Effect of temperature on oil/water relative permeabilities in microfluidic micromodel, The
… method and an alternate approach based on Darcy’s law were used to calculate oil/water relative permeabilities from displacement experiments. The results of this study indicated that, as temperature went up, oil relative permeability increased, and residual oil saturation decreased. There …
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Development of a new method for fibre reinforced rotational moulding
… theoretical explanation for this was found in Darcy’s law. Based on Darcy’s law it was concluded that the only way to achieve sufficient impregnation was to use physical pressure on the molten polypropylene. Processing methods were developed for pressure bag and vacuum bag assisted rotational …
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Characterization of fluid flow in paper-based microfluidic devices
… modelling methods, the Washburn equation and Darcy’s law, were evaluated to determine the most appropriate method for predicting flow behaviour in paper. A mathematical model was developed along with an empirically determined expression for permeability.
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A model of the formation of a porous fibrous cake
… solved. The numerical model is based on solving Darcy’s law, the Bernoulli equation, and two-material related experimental correlations at discrete points along the screen. A permeability measurement test apparatus was designed and built, and experiments were run to determine the experimental …
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Numerical Modeling of CO2 Non-Dracy Flow in a Petroleum Reservoir
… is to provide a more accurate description of non-Darcy flow at the near wellbore region. Objectives of the research will be to characterize properties of non-Darcy flow and develop accurate descriptions of carbon dioxide (CO2) flow during injection scenarios and oil flow during production. Other …
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Programming of wicking behavior of hydrogel and paper-based microfluidic device
… Electrical circuit analogies derived from Darcy’s law and Washburn equation are used to model the fluidic behavior of μPADs. The computational model depicts flow behavior in two connected different wicking materials, paper and hydrogel, and will be a useful tool to optimize the design …
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Range of and relationships between physical and hydraulic properties of commonly available denitrifying bioreactor woodchips
… estimated using constant head permeameters and Darcy’s Law assumptions. Drainable porosity was assessed both by packing 1 L beakers (“jar method”) and in the permeameters. Particle size analysis was performed using a sieve shaker, as well as by manually measuring the longest, middle, and …
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Research about low permeability measurement
… of low to very low permeability rock based on Darcy’s law and the radius-of-investigation concept, which has been used in the well test design and analysis. Our method evaluates the permeability under unsteady-state flow, which requires a shorter time to determine flow capacity of low …
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Modelling and simulation of drying process for ceramic membrane fabrication
… approach where the mass and energy conservation laws are defined for a particular phase into which Darcy’s law and Fick’s law are substituted. A fully implicit algorithm has been employed for numerical solution using the finite element method in which the Galerkin weighted residual method is used …
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Part I: Geostatistical Interpolation of Rain Fields Using Radar Estimates and Gauge Observations: Algorithm Design and Automation; Part II: Energy Dissipation in Fluid Flows and Wave Transformation by Porous Barriers and Submerged Cavities
… a potential flow approach with the adoption of Darcy’s law as a boundary condition were derived. The analytical results were validated by experimental data collected in this study. Finally, the induced vortices and fluid particle entrainment process as solitary waves propagated past a submerged …
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Characterizing Groundwater Discharge from a Cobble Armored Streambed, Alder Creek, Ontario, Canada
… measure seepage velocities without reference to Darcy’s Law calculations (i.e. ‘direct’ measurements via small-scale tracer testing). Measurements were able to be made between the cobbles (0-10 cm below the streambed surface) and were later compared to seepage velocities estimated from …
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Behaviour and effectiveness of in-ground sustainable urban drainage systems in Scotland
… developed based on the finite-volume-method and Darcy’s law. This model, which uses the acronym FVD, was developed in collaboration with HR Wallingford Ltd and enables flow- simulation through gravel-filled SUDS. The FVD model was validated using on-site monitored data and an excellent agreement …
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Surface Spills Associated with Oil and Gas Activities in Saskatchewan and Potential Impacts to Shallow Groundwater Resources
… (10-5 - 10-3 m/s)). This conclusion was based on Darcy’s Law estimations of transit times through different surficial sediments; clay-rich till and glaciolacustrine deposits exhibited a time scale of thousands of years extending up to one million years while coarse-grained outwash sediments …
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Experimental and numerical analysis of behaviour of the myxospermous seeds of Capsella bursa-pastoris (L.) Medik. (shepherd’s purse) in soil
… mucilage concentration were well fitted by power law models. The dynamic rheology results showed that mucilage was a high viscous material and was able to be classified as a ‘weak gel’ material. The seed mucilage exhibited relative higher viscosity compared with mucilage from other plant parts …
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An experimental investigation of some capillary pressure-relative permeability correlations for sandstone reservoir rocks.
… for correcting permeability measurement using Darcy’s law was presented for discussion. This method allows for the inflow end effect and the depth of mud invasion in formation damage assessment.
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Interfacial and Physical Confinement Effects on the Structure and Properties of Aligned Carbon Nanotube Architectures
… of a polymer infiltration model based on Darcy’s law accurately predicts the time for uncured resin to fully infuse into A-CNT arrays during capillary-assisted PNC fabrication, corroborating experimental observations via X-ray micro-computed tomography and microscopy that a diluted 65 wt% …
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Computational and theoretical problems in fractional and higher-order theories for modeling biomechanical media
L'abstract è presente nell'allegato / the abstract is in the attachment