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Showing 1 to 10 of 10 for “"Convective Diffusion"”.
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A Numerical Model for Flux Decline During the Crossflow Ultrafiltration of Colloidal Suspensions
… expressed using the two-dimensional convective-diffusion equation. Numerical simulations showed that mass transfer in crossflow filtration quickly reaches a steady-state for constant boundary conditions. Hence, the unsteady nature of the permeate flux decline must be caused by changes …
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Modeling and Analysis of Plasma-Assisted Etching Reactor Phenomena
… in the sheath as an integral part of the model. Convective-diffusion and chemical reactions of the etchant species were also included as well as the state of the plasma, for the case of the oxygen discharge. Important dimensionless system parameters were identified and their effect on etch rate, …
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A fully implantable intracochlear drug delivery device : development and characterization
… the investigation of drug transport due to convective diffusion in the cochlea during drug delivery. A lumped-parameter model was implemented in an electrical circuit simulator after converting mechanical variables to their electrical analogues. A flow module described the output of the …
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Characterizing Erythrocyte Motions in Flowing Blood
… (RBC) are present at normal levels, but follow convective diffusion in dilute suspensions. A critical need is to understand and characterize dispersion and diffusion as they apply to red cells in suspension flow. The dispersive motions of <br />0.5-micrometer beads and fluorescently labeled …
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Photocatalysis in a novel semiconducting optical fiber monolithic reactor for wastewater treatment
… and validated. The two-dimensional heterogeneous convective-diffusion-reaction steady-state model of a multi-channel OFMR was developed by incorporating an empirical radiation field sub-model, an annular flow dynamics model and a Langmuir-Hinshelwood kinetics sub-model. Reasonable agreement was …
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Electrodeposited metal matrix nanocomposites as thin films and high aspect ratio microstructures for MEMS
… electrolytes was developed. The model, based on convective-diffusion transport and Tafel reaction kinetics, is solved numerically, and the calculated species concentrations at the solution-electrode interface are used to describe the electrode processes. The simulation was in agreement with …
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MODEL-BASED TESTING AND EVALUATION OF SORPTION MEDIA FOR REMOVING VOLATILE ORGANIC COMPOUNDS IN INDOOR AIR
… levels. A new mechanistic model named convective & diffusion mass transfer model with variable partition coefficient (C&DMT-VP) was proposed to simulate the performance of adsorption-based air cleaning devices under the typical indoor VOC concentrations. The applications of this model …
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Development of adsorption filtration process for virus removal for drinking water treatment
… for drinking water production in New Jersey. The convective diffusion of viruses to adsorbent particle surfaces in flow packed beds (FPB) enhances their removal efficiency if the adsorbent particle size can be decreased to about 100 microns. The development of effective virus removal technologies …
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Investigation on the Mechanism of Electrocodeposition and the Structure-Properties Correlation of Nickel Nanocomposites
… the electrode. The model took into account the convective diffusion of particles to the electrode surface, and the effect of gravitational and buoyancy forces on the particle flux. The gravitational force was found to be important for the ECD of 300 nm particles, but not for 50 nm particles. The …
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Nonlinear fluid dynamics in complex geometries
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-09-01 without embargo terms